sc lw4-ugc blast planning.pdf

7/28/2019 SC LW4-UGC Blast Planning.pdf

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LW4

LEARNER W ORK BOOK 4

IN UNDERGROUND COAL MINES

BLAS T PLANNINGAND REPORTING


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2 | LW4 V1 2009 Department o Education and Training | www.skillsonline.net.au

COPYRIGHT

All rights reserved. This work is copyright and availableonly rom the SkillsOnline website under license toNSW DET.

Permission is given to trainers and teachers to makecopies by photocopying or other duplicating processes

or use within their own training organisations, or in a

workplace where training is being conducted.

The onus rests on you as user to ensure compliancewith licensing arrangements. The Licensing Agreementstipulates the extent to which you can copy thismaterial.

I you use any portion o the material, you mustacknowledge NSW DET as the copyright owner.

I you develop enhancements o the material, you mustensure that NSW DET is appropriately acknowledged asthe original copyright owner.

You may not make it available or hire or re-sale withnancial gain other than at a cost recovery ee or

distribution and within the extent allowed by yourLicensing Agreement.

Outside these guidelines, all material is subjectto copyright under the Copyright Act 1968(Commonwealth) and permission must be obtained inwriting rom the NSW DET.

ACknOwledGemenT

This work has been produced initially with theassistance o unding provided by the NSW Departmento Education and Training, Industry Programs, throughthe Industry and Enterprise Skills Program with advice

rom the Project Steering Committee.These resources have been developed by SkillsDMC inconjunction with industry stakeholders. SkillsDMC wishto thank Graham Terrey and TAFE NSW or their work on this project.

dIsClAImeR

The views expressed in this work do not necessarilyrepresent the views o the NSW Department oEducation and Training. The NSW Department oEducation and Training do not give warranty or acceptany liability in relation to the content o this work.

PROJeCT TeAm

NSW DET would like to acknowledge the valuablecontribution o the many people who generouslygave o their time and ideas and contributed tothe development o these resources by providingin ormation, an industry perspective and review o theproject materials.

nAme ORGAnIsATIOn Allan Shoesmith Centennial CoalBill Brooks WorkCover NSWBruce McGeachie Xstrata CoalCherie Chen DET NSWClaire Cappe DET NSWCraig Parker PybarDavid Barker WorkCoverGraham Cowan NSW DPIGraham Hogg Downer EDILawrence Buswell Barrick GoldLeanne Parker HansonLorenzo Laguna Rio Tinto, NorthparkesMihai Leonte NSW DPIMichael Creese Newcrest, Cadia Valley

Operations

develOPed BY:Graham Terrey Mine Resilience Australia

develOPeR TeAm:Danny Duke Duke Consulting

2nd Project CoordinatorDavid Chapman TAFE NSWDorothy Rao SkillsDMCGiselle Mawer Giselle Mawer & AssociatesRobin Bishop Robin Bishop & Associates

1st Project Coordinator

FuRTHeR COPIes OF THIsResOuRCe ARe AvAIlABle FROm

Website: www.skillsonline.net.au

For urther in ormation contact:Email: [email protected]

Or visit SkillsDMC on:http://www.skillsdmc.com.au/


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Shot ring Course | Learners Workbook 4: Blast Planning and Reporting - In Underground Coal Mines LW4 |3

Candidates details

Name:

Employer:

Position:

Course:

Start Date:

Location:

Signature:

Date:

mAnAGeR / suPeRvIsOR endORsemenT

Name:

Signature:

Date:

Comments:

COACH, TRAIneR deTAIls

Name:

Contact details:

AssessOR deTAIls

Name:Contact details


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Contents

wHAT Is THIs leARneR wORkBOOk & ReCORd BOOk FOR? 6

WORKBOOK 6

RECORD BOOK 7PEOPLE WHO CAN HELP 7

Industry Trainer 7

Workplace Assessor 7

Fellow workers 7

Other students/trainees 7

BlAsT PlAnnInG & RePORTInG 8

WELCOME 8

Topics covered in each o the modules 8 ASSESSMENT 10

Conduct o Assessment 10

Success ul completion o the unit 10

RECOGNITION OF PRIOR LEARNING (RPL) 10

4.0 selF-AssessmenT CHeCklIsT: BlAsT PlAnnInG & RePORTInG 11

4.1 RevIew QuesTIOns: desIGn & suRveY BlAsT 20

LEARNING & ASSESSMENT TASK 4.1A - CALCULATING HOLE SPACINGS & POWDER FACTORS LEARNING & ASSESSMENT TASK 4.1B - SECONDARY BLASTING PROCEDURE 2

4.2 RevIew QuesTIOns: CAlCulATe QuAnTITIes OF eXPlOsIves ReQuIRed 30

LEARNING & ASSESSMENT TASK 4.2 CALCULATING QUANTITIES OF EXPLOSIVE REQUIRED POWDER FACTORS

4.3 RevIew QuesTIOns: IdenTIFY mAXImum InsTAnTAneOus CHARGe (mIC) & delAYs 35

LEARNING & ASSESSMENT TASK 4.3 CHECKING MIC & DELAYS 38

4.4 RevIew QuesTIOns: mOnITOR envIROnmenTAl ImPACTs 40LEARNING & ASSESSMENT TASK 4.4 - ENVIRONMENTAL & GROUND VIBRATION MONITORING


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4.5 RevIew QuesTIOns: ReduCe BlAsT ImPACTs 51

LEARNING & ASSESSMENT TASK 4.5 REDUCING & CONTROLLING BLAST IMPACTS 54

4.6 RevIew QuesTIOns: dIsPOse OF eXPlOsIves 57

LEARNING & ASSESSMENT TASK 4.6 - DESCRIBING YOUR SITES REQUIREMENTS FOR DISPOSAL OF UNWANTED EXPLOSIVES

4.7 RevIew QuesTIOns: mAInTAIn dOCumenTATIOn & RePORT 61

LEARNING & ASSESSMENT TASK 4.7 - REPORTING COMPILING A SET OF RECORDS 71

ReCORd OF leARnInG 81

EVIDENCE GATHERED DURING OFF-THE-JOB TRAINING. 81

EVIDENCE GATHERED DURING ON-THE-JOB TRAINING. 81

WHAT HAVE YOU DONE REGARDING BLAST PLANNING & REPORTING FOR ITEMS IN THE TABLE BELOW?

Have you, or example, compiled a work journal, or used the journal below that shows that you have: 93

THIRd PARTY PRACTICAl veRIFICATIOn RePORT: mOdule 4 BlAsT PlAnnInG & RePORTInG 97


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WHat is tHis

leaRneRWoRKBooK& ReCoRdBooK FoR?

This workbook covers underground coal mines, andis very similar to a parallel Workbook that has beendeveloped or all sites other than coal mines. The twoWorkbooks or this subject one or undergroundcoal mines, and the other or all other sites aredeliberately similar and have subtle di erences. The

principles involved are the same or all shot ring, but theprecautions are stricter or underground coal mines sothe practices di er and are constrained in some areas.The Learner Resources are slightly slimmer as a result.Workbooks are not much slimmer and will look the same,though there are word and term changes, and subtledi erences in ocus. However, or key principle and orcareer progression reasons, the Learner Resources andWorkbooks are kept in parallel so that a person canmove rom underground coal mines to other sites, or theother way around, and take advantage o the progressthey have already made.

The delivery o all our Modules in the Shot ring courseinvolves workshops, demonstrations and workplacepractice. Each Learner Workbook helps you to work through the Learner Resource and complete theassessment tasks. It can also help you to:

plan your study

build your skill as a learner

plan ways to apply and practise whatyou learn (use it, or lose it).

Your workplace trainer will guide you through the materialand some o the activities, and will help you develop alearning approach to ensure you can apply your learning.

This Workbook and Record Book helps a Trainer and an Assessor to develop and assess your required knowledgeand skill.

WoRKBooK

Throughout this Workbook there are Review Questionsthat will test your knowledge o the subject. There arealso some Learning and Assessment Tasks through thebook that help develop your knowledge and skills. Earlyon in this book you will nd a sel -assessment checklist tohelp you and your Trainer to determine the areas that you

will need to develop urther.


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ReCoRd BooK

At the back o this book there is a section or you to ul land record your on- and o -the-job experience.

PeoPle WHo Can HelP

You should not eel that you are alone when you study.There are many people who can help you and alsoenhance the quality o your learning experience. How youstudy this unit will determine who will be able to assistyou.

IndusTRY TRAIneR

I you study this unit on-site you will have a Trainer whowill either teach the unit in a ace-to- ace situation orguide you through the unit i you are doing it sel -paced. Your Trainer can answer any questions and give youadvice about:

where you can nd information

safety issues involved in performing activities

where to nd equipment and any other materialsrequired or per orming activities, and

performance standards to be achievedwhen per orming activities.

wORkPlACe AssessOR

I you study this unit through an external trainingorganisation you may be required to be assessed on-siteby a workplace assessor. The workplace assessor can

give you advice about: how, where and when you will be assessed

assessment tasks, and

assessment standards.

You will also get eedback rom the assessor about yourper ormance.

FellOw wORkeRs

I you are studying this unit on-site you will be able toobtain assistance rom those around you. They canadvise on a wide range o issues including:

current practices and procedures

where you can nd informationthat will assist your studies

the meaning of words used in the unit, and

industry examples that will help youto understand basic principles.

OTHeR sTudenTs/TRAInees

I you are studying this unit on-site or at an external

training organisation you will have other students/ trainees to help you. Other student/trainees will havedi erent work experiences and can help with many thingsincluding:

study groups where you can discuss the knowledgeand skills required to achieve competency

one-to-one question and answer sessions to helpwith your mastery o the contents o the unit, and

emotional support if you are havingdi culties with your studies.

Here are some simple tips or saving time, getting theresults you want, and making the most o your learning.Try using the checklist to assess yoursel as an e ectivelearner at di erent times during the course.

Learning Tips

1. Clari y course requirements and training times at the beginning2. Set date targets to nish the assessment tasks3. Look through all the materials to get the big picture rst

4. Make it your course, not what someone istelling you to do (even i they are)

5. Use and build on the experience and skills you already have6. Ask questions when you need to clari y any point7. Make sure you complete/participate in the activities8. Review each section as you go how does

the learning relate to your job9. Talk about what you are learning with

others (colleagues, riends)10. Use what you learn in the workplace while its resh11. Look or speci c, practical ways to use

your learning beyond the course.


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Blast

PlanninG &RePoRtinG

WelCoMe

Welcome to Module 4 Blast Planning & Reporting othe Shot ring Course or underground coal mines. TheShot ring Course has been structured as a series o

our modules each with a Learner Resource and LearnerWorkbook. The our modules are:

1. Storing, Handling, and Transporting Explosives2. Charging Blast Holes3. Firing Shots4. Blast Planning and Reporting

This structure allows fexibility in the delivery o thetraining to accommodate di ering roles, responsibilitiesand requirements o personnel involved in shot ring.

TOPICs COveRed In eACH OF THe mOdules

mOdule 1

Storing, Handling, & Transporting Explosives

1. Identi y explosives & associated hazards and complywith Acts, Regulations, Standards and Codes byimplementing risk management & procedures

2. Access & maintain storage and security o explosives3. Transport o explosives including de ective

explosives & emergency plans & response

mOdule 2

Charging Blast Holes

1. Prepare or charging, including sa ety requirementsand checking blast area and shotholes

2. Mix / manu acture explosives, andchecking o equipment

3. Prime shotholes4. Load explosives5. Clean-up & Report


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mOdule 3

Firing Shots

1. Hook up and test2. Clear/isolate the area a ected by the blast

3. Fire the shot4. Conduct post-blast checks5. Report6. Return surplus explosives7. Handle mis res

mOdule 4

Blast Planning & Reporting

1. Design / survey blasts2. Calculate quantities o explosives required3. Identi y the Maximum Instantaneous Charge4. Monitor environmental impacts5. Reduce blast impacts6. Dispose o explosives7. Report

The our modules ollow a learning sequence to

progressively gain the skills necessary or a shot rer. A ter success ully learning the Learner Resource andcompleting related activities in this Learner Workbook youshould be able to complete the assessment tasks in blastplanning and reporting and meet the requirements or therelevant units o competency.

This Workbook is or people who are already amiliarwith storing, handling & transporting explosives, chargingshotholes, and ring the shot. Blast planning andreporting is a necessary part o being a shot rer, who is

accountable or conducting sa e and e cient blasts andmaintaining records, and speci cally to:

1. Design / survey blasts:a. Knowing where and how youre going to blast;b. Designing & surveying a blast;c. Thinking about the basic actors

involved in a blast design;d. Understanding what happens during a blast;e. Calculating the burden & spacing o shotholes;

. Managing special conditions.

2. Calculate quantities o explosives required:a. smooth-wall blasting;b. testing against the real situation;c. sinking a sha t or well;

d. calculating explosives requirements.

3. Identi y the Maximum Instantaneous Charge & delays:a. Knowing whether you are restricted in the

amount o explosives red on one delay;b. Remembering public sa ety too;c. Thinking about the tightness o the shot

& environmental consequences;d. Adjusting your rule o thumb or site experiencee. Identi ying problems & possible solutions;

. Selecting the shothole pattern;g. Planning the blast delay.

4. Monitor environmental impacts:a. Being aware o environmental disturbances;b. Identi ying causes o disturbance;c. Improving community awareness.

5. Reduce blast impacts:a. Controlling variables;b. Reducing fyrock risk (notably when sha t

sinking / dri ting near the sur ace);c. Reducing dust (notably when sha t

sinking / dri ting near the sur ace);d. Reducing noise or airblast overpressure;e. Minimising ground vibration.

6. Dispose o explosives:a. Collecting and removing explosives;b. Destroying explosives and detonators;

c. Complying with legal obligations.


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7. Maintain documentation & Report:a. Taking a systematic approach to the

management o explosives usage & risks;b. Being accountable & responsible or records;c. Giving commitment to your sa ety policy

including having a blast management plan;d. Keeping risk management records;e. Documenting procedures;

. Training & records;g. Supervising & maintaining shi t records;h. Maintaining site security, induction & access;i. Maintaining equipment & acilities; j. Monitoring sa ety & health, production,

environment & community relations per ormance;k. Complying with, or en orcing rules & standards.

For assessment purposes it is essential that youdemonstrate competence in these areas.

assessMent

Assessment will be against the shot ring units o

competency in the ollowing Training Packages:1. MNC04 Coal Training Package

The assessment tasks or Firing Shots are designed tomeet the outcomes o the ollowing relevant units ocompetency. They are:

a. MNCU1048B Conduct shot ring operationsb. MNCU1049B Support shot ring operations

This is urther detailed in another book called theLearners Guide.

COnduCT OF AssessmenT

Your trainer and/or assessor will con rm with you theassessment process and your readiness or assessment. A range o evidence will be gathered or the assessmentincluding written and/or verbal questions, observation andthird party reports, such as rom your supervisor, o youapplying your knowledge. Assessment tasks are providedin this Learner Workbook.

suCCessFul COmPleTIOn OF THe unIT

When you have nished working through this moduleand the related activities you will need to demonstratethat you can per orm the assessment tasks and meet therequirements o the units o competency. Assessment

o this module consists o a practical demonstration othe required skills and answers to written/oral knowledgequestions.

The practical tasks will be similar to the activities thatare included in this Learner Workbook. That is why youwill need to ensure you can per orm the activities in thisWorkbook satis actorily. You must practice the activitiesuntil you eel satis ed that you can per orm them to therequired standard. The activities in this Learner Workbook prepare you or assessment.

When you are satis ed that you can achieve competencyin this module you should ask to be assessed.Success ully completing the assessment demonstratesthat you have achieved the module o competencyoutcomes. I you are unable to provide evidence thatyou can apply your learning in a workplace or in asimulated situation, you can ask your trainer or astatement regarding your learning that you can use lateras evidencetowards achieving competency when you areassessed in the workplace or in a simulated situation or

your Unit.

ReCoGnition oF PRioRleaRninG (RPl)

Recognition o Prior Learning is the recognition ocompetencies you currently hold. In order to grantRPL your assessor must be con dent that you arecurrently competent against the endorsed competencystandards. You can use the Sel Assessment Checklistat the beginning o the Learner Workbook to assess yourknowledge and skill in blast planning and reporting. I youare con dent you can demonstrate competence discussthe opportunity or RPL with your trainer/assessor.


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4.0selF-

assessMentCHeCKlist:Blast PlanninG& RePoRtinG

Write / Draw

Be ore commencing your learning you might like to usethis sel -assessment checklist to review your knowledgeand skills in critical items o evidence. You can also usethe checklist to see i you:

a. have the knowledge and skills to apply or RPLb. are ready or assessment at the

completion o the modulec. wish to identi y particular areas in which youd

like to concentrate in your urther development.

Please place a tick ( 3 ) or cross ( 5 ) in the boxes asapplicable in the areas listed below.

Note: the ollowing comprehensive checklist is the sameor all Modules so it may be a bit daunting - discuss it

with your Trainer or simply tick the topics with whichyou now eel com ortable, or the areas on which you

eel you need to concentrate. It is in this orm because,in 2008, the Units o Competency are in a stage oconsolidation and possible transition. The transition hasbeen anticipated in the Modules. Do not eel that youhave to be competent in every item below at this stage.By the time you have completed Module 4, you should

have ticked all o the Competency Unit Re erences.These Units o competency are listed in the table belowand relate to a re erence number in the checklist. Forexample, in the rst box relating to Design / surveyblasts, the Competency Unit Re erence Number 1(1.1)re ers to RIIBLA202, Element 1.1, and you would nduse ul material to help you, in Modules 1 and 2, whileCompetency Unit 2 material will mostly be covered inModules 2 and 3, with Competency Unit 3 being coveredin the main by Modules 3 and 4. As a general (and airlycrude) guide, you might ocus on the those areas relatingto:

1. in Module 1 - the rst Unit o Competencyin the list below (RIIBLA202)

2. in Module 2 parts o the rst twoUnits (RIIBLA202 and 302)

3. in Module 3 mostly RIIBLA3024. in Module 4 mostly RIIBLA302 and 401


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(Your) Name

The ollowing are my views o my knowledge andexperience against a compilation o elements & per ormance criteria rom the ollowing competencies:

1. RIIBLA202 Support underground shot ring operations2. RIIBLA302 Conduct shot ring in underground coal mines3. RIIBLA401 Manage Blasting Operations

Note: these Units replace Competency Units:MNCU1048B Conduct shot ring operationsMNCU1049B Support Shot ring Operations

MNMUGC118A Charge underground blasts

e t a P r or a c Crit ria

I ca ho that I ha th r q iro g a ca :

Co pu it R

Y /no

I rth r op t a / or xp ri c i

1 d ig / r y b a t

a. Receive,i. interpret,ii. clari y and

iii. con rm andiv. manageblast plans, associated reporting and

related shot ring managementwork requirements, by preliminarysite inspection i necessary

1(1.1)2(1.1,1.3)

3(1.1)

b. Identi y potential hazards/risks associatedwith blast planning and relatedshot ring management work, andi. manage risks including managing risks associated with the

storage, handling and transport o

explosives, charging shotholes, andconnecting and testing circuits, and risks associated with disposal

o explosives and mis res managing on behalf of the

organization, the secure and sa esystems o shot ring-related work

2(2.9)3(1.4, 2)3(4)3(5)3(1.5)

c. Access,i. interpret andii. clari y legislative andiii. site requirements andiv. procedures speci cally carry out

pre-blasting procedures andv. establish exclusion zonevi. or the range o shots on site

2(1.2)

d. Arrange / ensure Survey oblast area to blast plan andi. site requirements is complete, locate position of blast holes and prepare survey reports, and report to appropriate personnel


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(Your) Name



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e. Access,i. interpret andii. apply geological and survey data and weather conditions required

to complete the shot

1(1.2)2(1.2,2.3)

. Carry out calculations to enablei. pattern design,ii. loading andiii. tying in shots within

iv. legislative requirements andv. site procedures for the range of shots on site including1. shots in solid coal2. shot ring in stone

1(1.4,1.5)2(2.3)3(3.8)

1(1.6)2(1.2)3(1.3)3(3.5)

g. Identi y, con rm and adjust the explosivesand accessories required or a blast, andi. Arrange or purchase and

re-stocking as requiredii. Conduct regular stock-takes

1(1.6,3.5)3(3.6)1(1.6)

h. Coordinate and manage supportrequirements or all shots, includingi. vehicles,ii. public andiii. site noti cation andiv. other equipment

i. Establish as relevant or all shots, thei. stemming stockpile andii. accessories on shot site

j. Store explosives and accessories inacilities at the shot to comply with

i. legislative requirements andii. site procedures

1(2.1)


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(Your) Name



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k. Establish and communicate accessroutes to all shot areas ori. authorised persons andii. vehicles

1(2.5)2(3.3)

l. Transport and manage thetransport o explosives andaccessories to blast area andi. segregate explosives on-the-job

1(2.5)

m. Ensure that explosives arenot le t unattended

n. Identi y hole locations andi. any problems with shotholes or

other non-con orming conditionsin preparation or charging

1(3.4)2(2.8)

o. Ensure blast holes are primed,charged, stemmed and tied-in inaccordance with loading plan andi. identi y non-con orming conditionsii. fushed out or cleanediii. apply explosion inhibitoriv. tied inv. carry out pre-blasting proceduresvi. initiatedvii. ollow post-blast proceduresviii. deal with mis resix. carry out post-blast coordinationx. complete & maintain

records and reports

1(3.4)1(3.8)1(3.4)1(3.5)1(4.1)1(4.1)1(3.6)1(4.3)1(4.4)1(4.5)1(5.1)1(5.2)

p. Supervise blast personnel duringi. loading,ii. tie-in andiii. initiation operations

1(3.9)3(7)3(3.2)


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q. Test equipment and accessories andi. carry out inspection andii. required maintenance a ter

shot ring operationsiii. manage maintenance o

blasting equipment

1(3.7)3(3.4)

r. Manage the implementation o the sitesblast management plan includingi. Veri ying the implementation o the

sites blast management plan

2 Ca c at q a titi o xp o ir q ir

a. Carry out calculations o thequantities o explosives required(to enable pattern design, loadingand tying in shots within legislativerequirements and site procedures)

1(1.4)

b. Carry out pre-blasting procedures andi. establish exclusion zone

1(4.2)2(3.2)

c. Secure includingi. manage site procedures

or securing shot area

3(3.7)


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(Your) Name



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3 I ti y th maxi I ta ta oCharg

a. Carry out calculations o MIC andi. delay sequences (to enable

pattern design, loading andtying in shots within legislativerequirements and site procedures)

1(1.4,1.5)

b. Initiate the blast 1(4.3)

4 mo itor iro ta i pact

a. Carry out calculations o environmentalimpacts (to enable pattern design, loadingand tying in shots within legislativerequirements and site procedures)

3(3.1, 4)

b. Declare area sa e or re-entry

c. Carry out post blast coordination andi. Post-blast inspection

d. Conduct blast monitoring andi. Apply the sites blast

monitoring system

1(5.1,5.3)3(3.4)


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5 R c b a t i pact

a. Based on blast monitoring and blastrecords ensure uture blast holesare charged in accordance withi. loading plan including or secondary blasting andii. identi y problems (or non-

con orming conditions) toiii. reduce blast impacts) within legislative requirements and site procedures

3(3.8)

6 di po o xp o i

a. Deal with mis res 1(4.5)

b. Dispose oi. damaged,ii. deteriorated andiii. surplus explosivesiv. noti ying relevant

emergency personnel

1(2.4)

c. Maintain inventory controlsystems in accordance withi. legislative requirements andii. site procedures

1(2.2)

d. Manage the disposal o mis res 3(6)


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7 R port 1(5.2)

a. Maintain records includingi. Relevant tickets, permits,

licences or authorities

3(1.2,3.10)

b. Complete reports 3(1.6)

c. Report, and manage the reportingo , any unexplained loss or the to explosives immediately

3(1.7)


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tHe Use oF iCons

The icons used throughout the Learner Workbook are:

Write / Draw

Write or draw answers in the spaces provided in thisLearners Workbook.

Read

Read as directed.

Technical Information

Re er to technical in ormation. For the most part this willbe an accompanying Learner Resource, but may alsoinclude relevant standards and site in ormation.

Video / Multimedia

Watch a video or other multimedia resource

Activity

These activities require you to locate and use trainingresources.

Danger

The activities are potentially dangerous.

Safety You must ollow sa ety procedures or wear protectiveequipment


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4.1ReVieW

QUestions:desiGn &sURVeY Blast

Write / Draw

The ollowing questions will provide you with anopportunity to re resh your understanding be orecompleting the ollowing Learning & Assessment Task.


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1. What is the purpose o a pre-work meeting be ore moving out to the blast site?

2. What are at least our vital actors in the design o a blast?

3. When an explosion occurs, what are the two main eatures that make them work?


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4. List three ways o preventing fyrock?

5. Why might you lightly charge the holes around the roo o a roadway or tunnel heading?

6. What are typical ratios or hole diameter and hole spacing or blasting when a. the coalmoves at right angles to the shothole, and b. or stone in a roadway heading?

7. When is it absolutely essential that you stem shotholes?


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10. Does your site have any special conditions, such as hot or reactive ground, or the potential or gas and/ or dust explosions that might change your blast design? I so, describe how these special conditions alter yoursites blast design. You might need to think about this question, because you might not recognise the di erenceit makes, so when you think about this question, try to think about any special way in which your sites blastingmay be signi cantly di erent to other sites. You might also discuss this with your sites undermanager(s),asking them i your sites shot ring practices di er in any signi cant way to other sites. (make notes below)


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leaRninG & assessMent tasK 4.1a - CalCUlatinGHole sPaCinGs & PoWdeR FaCtoRs

Activity

Obtain a copy o two di erent blasting plans or standarddesigns used at your site.

Find out what hole diameter(s) is drilled and theburden and spacing or shotholes; you may have twoor more main sizes o drill holes or example, one ordevelopment rounds and another or production blasts.

Calculate the relationship between the burden andspacing and the diameter o the shothole(s).

Compare your result with typical relationships or quarry/ stope blasts or tunnel/drive headings.

Comment on the di erence or similarity and explain thedi erence or similarity.


You may be able to obtain a copy o blasting plans orstandard designs rom a senior blasting supervisor,technical person or mining/civil engineer, and i that isntsuccess ul by asking the mine/quarry/civil constructionmanager or even a blasting contractor.

Alternatively, you might re er back to your LearnersResource to draw up two blast plans relevant or your site a plan graph is attached below and a typical blast plan

is attached behind this Task or your use i needed.

Write / Draw

Write your answer in the space provided. I there isinsu cient space use an extra sheet o paper.

Safety

The activities will require you to move around the minesite and you must ollow sa ety procedures and wearpersonal protective equipment.

4.1.1 Obtain a copy o two di erent blasting plans or standard designsused at your site (what are they? give a brie explanation).


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i. Find out what hole diameter(s) is (are) drilled and the burden and spacing or the shotholes (you mayhave two or more main sizes o drill holes or example, one or development rounds and another orproduction blasts and dont worry too much about reamed holes in a drive heading or example).

ii. Calculate the relationship between the burden and spacing and the diameter o the shothole(s).

iii. Compare your result (in answering the previous question) with typical relationships or civil constructiontunnel/drive headings. Comment on the di erence or similarity and explain the di erence or similarity.

Attach any diagrams such as blast plans or standard designs here (but be sure to make a note o this in question 4.1.1above)


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saMPle Blast PlanSite Date red Time red Shot Number

DRILLING & LOADING DETAILS EXPLOSIVES USED

Type o stone Type Quantity Cost, $

Density o stone Tonnes/m3

Burden metres

Spacing metres

Number o holes

Average depth metres

Total metres metres

Total tonnes o stone tonnes

Subgrade drilled Mm/hole

Pattern typeShothole diameter millimetres

Number o rows

Shothole inclination angle degrees

Bench height metres

Stemming depth metres

Stemming material

Unit cost, cents per cubicmetre or tonne

Total cost. $

Total explosive charge Kg Powder actor Kg/cubic metre

Heaviest charge detonated on any one delay (Maximum Instantaneous Charge) Kg

Remarks, including: Variation rom standard in loading, drilling, or example, wet or misaligned holes, undercut ace, stemmingchanges, delays di erent, etc

Fragmentation % through primarycrusher

Muckpile pro le

Weather

Ground vibration mm/s Airblast overpressure dB(linear) Location

Shot loaded by Supervisor

Complaint Date received Person(s) concerned

Nature o comments

Action taken Who What Time/date Checked Feedback & response


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leaRninG & assessMent tasK 4.1B - seCondaRY BlastinG PRoCedURe

Activity

Obtain a copy o the standard operating procedure orsecondary blasting on your site, or describe the procedureused on your site.

I your site has chosen not to break rocks by secondaryblasting, interview your supervisor or the person to whomthey re er you, and write down or explain the reasons orthis choice, and any circumstances that might cause themto reconsider their choice.

Cover all possibilities or secondary blasting includingbreaking up large boulders rom main blasts, clearing

large boulders rom a crusher, and clearing large bouldersas part o site clearing.


You may be able to obtain a copy o your sites procedurerom a supervisor or sa ety o cer, or rom a senior

blasting supervisor, technical person or mining/civilengineer, and i that isnt success ul by asking the mine/ quarry/civil construction manager or even a blastingcontractor.

Clearance procedures may orm part o a broaderprocedure so only take action here with a ocus on theclearance and isolation part o the procedure;

I you cant obtain a copy, re er to your Learner Resource3 and make up a procedure - using the ormat or aprocedure that you saw in Module 3 Firing Shots withno more than ten steps.

Write / Draw


Safety


4.1B.1. Obtain a copy o the standard operating procedure or secondary blastingon your site, or describe the procedure used on your site.


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4.1B.2 I your site has chosen not to break rocks by secondary blasting, interview your supervisor orthe person to whom they re er you, and write down or explain the reasons or this choice


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and any circumstances that might cause them to reconsider their choice. Cover all possibilitiesor secondary blasting including breaking up large boulders rom main blasts, clearing large

boulders rom a crusher, and clearing large boulders as part o site clearing.

Attach any documents such as procedures a ter this page (but be sure to make a note o this in question 4.1B.1 above)


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4.2ReVieW

QUestions:CalCUlateQUantities oFeXPlosiVesReQUiRed

Write / Draw



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1. What are typical powder actors or the activities in the ollowing table?

App icatio Po r Factor

Blasting solid coal

Roadway shooting in stone

Trenching

Tunnelling in civil construction

Sha t sinking

2. I you were required to shoot a roadway in stone, what sort o cuts could youuse and what makes the di erence in selecting one over the other?

Cut 1

Cut 2

Cut 3


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3. How much o a shothole do you leave uncharged (in relation to the burden)?

4. What are at least ten actors to take into account when designing ablast that help you work out how much explosive to use?


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leaRninG & assessMent tasK 4.2 CalCUlatinG QUantitiesoF eXPlosiVe ReQUiRed PoWdeR FaCtoRs

Activity

Calculate the powder actors used in at least two di erenttypes o blasts on your site;

1. calculate this powder actor as the weight oexplosive in kilograms per cubic metre o rock and

2. compare your result with typical relationships orcivil construction tunnel/drive headings. (Note: somesites re er to powder actors in terms o kilogramso explosive per tonne o rock, so or the purposeso this assessment task you will need to convert

this rom kg/t to kg/m3; i you need help doing thisask your supervisor or ask someone or the densityo the rock to convert tonnes to cubic metres.)

3. Comment on the di erence or similarity in the powderactors on your site compared with typical powderactors and explain the di erence or similarity.


You may be able to the necessary in ormation or advicerom your sites senior blasting supervisor, technical

person or mining/civil engineer, and i that isnt success ulby asking the mine/quarry/civil construction manager oreven a blasting contractor.

Alternatively you may re er back to your Learner Resource4 Blast Planning & Reporting or typical powder actorsthat you could check.

Write / Draw


Safety


4.2.1 Calculate the powder actors used in at least two di erent types o blasts on your site; calculate this powderactor as the weight o explosive in kilograms per cubic metre o rock and compare your result with typical relationshipsor civil construction tunnel/drive headings. (Note: some sites re er to powder actors in terms o kilograms o explosive

per tonne o rock, so or the purposes o this assessment task you will need to convert this rom kg/t to kg/m3; i youneed help doing this ask your supervisor or ask someone or the density o the rock to convert tonnes to cubic metres.)

Blast type 1.


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Blast type 2.

4.2.2 Comment on the di erence or similarity in the powder actors on your sitecompared with typical powder actors and explain the di erence or similarity.


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4.3ReVieW

QUestions:identiFYMaXiMUMinstantaneoUsCHaRGe (MiC)& delaYs

Write / Draw



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1. What do you understand the term Maximum Instantaneous Charge to mean?

2. List six environmental and public sa ety reasons or controlling the MIC.

3. Give a possible solution to the problems listed in the ollowing table.

Prob Po ib so tio

Excess over-break

Rocks excessively scatter

Rocks come out, butragmentation poor

Excess back-shatter

Toe between holes

High bottom

Boulder in ront o pile


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Boulders on top o pile

Boulders on foor

Boulder within pile,good ragmentation

4. Why would you use short delay detonators instead o long period delays in shot ring in underground coal mines?

5. Draw below a roadway blast and show the order o ring in the sequence.


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leaRninG & assessMent tasK 4.3 CHeCKinG MiC & delaYs

Activity

Examine the copies o blast plans or standard blastdesigns that you have already obtained, and check thatthe delays are shown on the plans. These delays maybe shown as the order in which each hole res, or as thedelay period, or as the delay a ter the shot is initiated.

Check what is the largest number o shotholes that will bedetonated on any one delay.

Calculate the weight (in kilograms) o explosives in eacho the holes that are red on the same delay and multiplythis by the number o shotholes to work out the MIC (or

total weight o explosives per delay).


You have already obtained a copy o blast plans. I theydo not show the delays you may be able to help romyour sites senior blasting supervisor, technical person ormining/civil engineer, and i that isnt success ul by askingthe mine/quarry/civil construction manager or even ablasting contractor.

Write / Draw

Write your answer in the space provided. I there is

insu cient space use an extra sheet o paper.

Safety


4.3.1 Check what is the largest number o shotholes that will be detonated on any one delay on thecopies o blast plans or standard blast designs that you have already obtained (These delays may be shownas the order in which each hole res, or as the delay period, or as the delay a ter the shot is initiated).


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4.3.2 Going on rom the previous check, calculate the weight (in kilograms) o explosivesin each o the holes that are red on the same delay and multiply this by the numbero shotholes to work out the MIC (or total weight o explosives per delay).

Attach any diagrams such as blast plans or sketches here (but be sure to make a note o this in question 4.3.1 above)


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4.4ReVieW

QUestions:MonitoRenViRonMentaliMPaCts

Write / Draw



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1. What are the two key environmental constraints placed on most blasting?

2. What are other environmental impacts that need to be watched?

3. What are the blast conditions that result in high ground vibrations?

4. What are the worst weather conditions or blasting near the sur ace, in respect o neighbours?


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5. What is the worst condition or blasting at your site rom a complaints point o view?

6. What monitoring equipment does your site use to measure blast impacts? (i your site does nothave its own monitoring equipment, nd out who the site engages to measure blast impacts and tryto discuss monitoring equipment with them, or look at your Learner Resource and AS2187)

a. What equipment is used or airblast overpressure?


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b. What equipment is used or ground vibration?

c. How do know that these items o equipment are recording correctly? (when were they last checked or accuracy?)


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d. Who might be responsible or sending the items away or checking?

e. I the equipment was checked or accuracy, what records are kept to prove that they are reading correctly?


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. Who does any repairs or maintenance on the equipment, and what records o maintenance are kept?


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leaRninG & assessMent tasK 4.4 - enViRonMental& GRoUnd ViBRation MonitoRinG

Activity

From your previous Assessment Task (4.3), in whichyou calculated the MIC or two blasts, now estimatethe ground vibration using the graph rom AS2187.2 Appendix J (see below).

You might also use your Learner Resource to estimateairblast overpressure.

Enquire o your supervisor / manager and nd out howclose the nearest residence is to your blasting activities.

Find out what i any environmental restrictions havebeen placed on blasting at your site, and compare yourestimate o ground vibration with those restrictions orlimits.

Enquire o others on site who are involved with blastdesign to nd out what environmental issues are ogreatest concern, and whether there have been anycomplaints about blasting.

I there any complaints briefy outline the nature othe complaint and the outcome o any investigation orregulatory response as a consequence.


I your site has environmental limits or blasting, you maybe able to obtain a copy rom a senior blasting supervisor,technical person or mining/civil engineer.

Or you may re er back to your Learner Resource 4Blast Planning & Reporting or common limits or urtherin ormation i that is necessary;

Appendix J o AS2187.2 is also a use ul re erence orenvironmental monitoring.

Write / Draw


Safety

The activities will require you to move around the minesite and you must ollow sa ety procedures and wear

personal protective equipment.

4.4.1 From your previous Assessment Task (4.3), in which you calculated the MIC (or e ective charge per delay) ortwo blasts, estimate the ground vibration using the graph rom AS2187.2 Appendix J (included or your use below):

a. at a residence 300m away rom the shot or the largest MIC

b. or, i you wanted to make sure that the vibration was less than 2mm/sat a residence 300m away what would be your MIC


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c. and, enquire o your supervisor / manager and nd out how close the nearest residenceis to your blasting activities and calculate the MIC or your sites largest blasts.


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4.4.2 Estimate (using your Learner Resource 4) the airblast overpressure at the same location.

4.4.3 Which o the two (ground vibration or airblast overpressure) is likely to be the most signi cant to limitingyour blasting practice? Discuss your answer with your shot rer or the person most likely to receive complaints.


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4.4.4 Find out what i any environmental restrictions have been placed on blasting at yoursite, and compare your estimate o ground vibration with those restrictions or limits.

4.4.5 Enquire o others on site who are involved with blast design to nd out what environmental issues are ogreatest concern, and whether there have been any complaints about blasting. I there have been any complaints briefyoutline the nature o the complaint and the outcome o any investigation or regulatory response as a consequence.


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4.4.6 I your site conducts blast monitoring (whether routinely or only very occasionally),compare your estimates with actual monitoring results and compare results.

Attach any procedures a ter this page (but be sure to make a note o this in question 4.4.1, 4.4.2, or 4.4.3 above)


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4.5ReVieWQUestions:RedUCe BlastiMPaCts

Write / Draw



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1. List at least our uncontrollable variables that have an impact on environmental impacts rom blasting.

2. List at least six controllable variables that have a direct a ect on blast impact reduction.

3. List at least six ways that you can reduce the likelihood o fyrock i you were commencing a sha t sink or a dri t.


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4. List at least six ways that you can reduce airblast overpressure.

5. List at least six ways that you can reduce ground vibrations rom blasting.

6. What are typical limits or ground vibration and airblast overpressure?


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leaRninG & assessMent tasK 4.5 RedUCinG& ContRollinG Blast iMPaCts

Activity

From your previous Assessment Task (4.4), in which youound out what i any environmental restrictions are been

placed on blasting at your site, and you ound out whatenvironmental issues are o greatest concern at your site,outline how you measure or monitor these issues.

I your site does not have any environmental limitsrestricting your blasting at present, assume that you willcommence a sha t sink. What instruments are, or wouldbe used and what readings are or would be taken.

When do you or would you turn on the instruments.

I your site does not take routine measurements oenvironmental issues, nd out rom your supervisor orblasting expert or manager i and how your site hasestimated or would estimate the environmental impactsand whether this was or would be based on externalexpertise with or without trial blasts or occasionalmeasurements being taken.

Also outline the controls or typical blasts at your site in

relation to these issues.

In particular, outline also your site approach to minimisingany risk o fyrock.


Appendix A o AS2187.2 contains in ormation about thesorts o in ormation recorded in blast plans.

A typical Blast plan is attached below or your re erence ineeded.

Write / Draw


Safety


4.5.1 From your previous Assessment Task (4.4), in which you ound out what i any environmentalrestrictions are been placed on blasting at your site, and you ound out what environmental issues areo greatest concern at your site, outline how you measure or monitor these issues. (What limits arethey, or would they be i you were to commence a sha t sink? What instruments are/would be usedand what readings are/would be taken? When do/would you turn on the instruments, etc ?).


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4.5.2 I your site does not take routine measurements o environmental issues, nd out rom your supervisoror blasting expert or manager i and how your site has estimated environmental impacts rom shot ring

and whether this was based on external expertise with or withouttrial blasts or occasional measurements being taken.


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.4.5.3 Also outline the controls or typical blasts at your site in relation to these issues.

4.5.4 In particular, outline also your site approach to minimising any risk o fyrock.

Attach any documents or procedures here.


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4.6ReVieW

QUestions:disPose oFeXPlosiVes

Write / Draw



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1. Tick the appropriate boxes to indicate how the ollowing explosives are destroyed.

d tr ctio by

exp o i pro ct d to atio B r i g wat r

Black powder

Nitroglycerine

ANFO

Watergels

Emulsions

Cast primers

Detonating cord

Detonators

Detonating devices

2. Who would you let know o de ective explosives and why?

3. What is your basic assumption when destroying explosives?


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leaRninG & assessMent tasK 4.6 - desCRiBinG YoUR sitesReQUiReMents FoR disPosal oF UnWanted eXPlosiVes

Activity

Investigate your sites procedure or disposing ode ective, deteriorated or obsolete explosives.

I your site does not have a procedure, prepare onespeci cally developed or your site, re erring to:

1. provisions in magazines (i you have them on yoursite) or holding explosives awaiting destruction;

2. processes or destroying small quantities o explosives;3. on-site approvals or destroying

larger quantities o explosives;4. noti cation to government agencies;5. speci c places or destroying explosives;6. warnings and supporting personnel requirements;7. guarding entry during burning and site clearances;8. reporting / recording o destruction

activities and stock records.


You may be able to obtain a copy o any procedure ordestroying explosives rom the person who has theresponsibility or maintaining the magazine or stock usage.

Requirements may also be part o a broader procedure orset o rules, that may be obtained rom a senior blastingsupervisor, technical person or mining/civil engineer, and

i that isnt success ul by asking the mine/quarry/civilconstruction manager or even a blasting contractor.

Magazine rules may also stipulate what is to be doneor the temporary storage o damaged explosives a ter a

blast; and,

Your Learner Resource 4 Blast Planning & Reportingprovides basic in ormation on the destruction oexplosives.

AS2187.2 Section 11 also contains in ormation regarding

explosive destruction.

Write / Draw


Safety


4.6.1 Investigate your sites procedure or disposing o de ective, deteriorated or obsolete explosives. Iyour site has a procedure compare its contents against the list suggested below (your procedure may

be ar more speci c about the laying o a sawdust bed, dowsing with diesel and setting it on re).


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4.6.2 I your site does not have a procedure, prepare one speci cally developed or your site, re erring to:

a. provisions in magazines (i you have them on your site) or holding explosives awaiting destruction;b. processes or destroying small quantities o explosives;c. on-site approvals or destroying larger quantities o explosives;d. noti cation to government agencies;

e. speci c places or destroying explosives;. warnings and supporting personnel requirements;

g. guarding entry during burning and site clearances;h. reporting / recording o destruction activities and stock records..

Attach any copies o procedures as appropriate (but be sure to make a note o this, or example in question 4.6.1 above)


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4.7ReVieW

QUestions:MaintaindoCUMentation& RePoRt

Write / Draw



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1. Does your site have a sa ety policy, and i so does it lay the undamental intentions or theworking environment, equipment, people and procedures (give a brie description)?

is it part o your sites explosives management plan and i so what is the list o contents in that management plan?


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2. Do you see how the policy could relate to explosive storage, handling, transport and use?

3. Does your sa ety policy re er to or in er risk management?

4. Do you have a ormal risk management procedure at your site (What is it called or example is it called a JSA?)?


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Is there a orm to use?

How do you get a copy o the orm?

When is it to be used?


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Who is responsible or using it?

Is it or group use?

Briefy outline the steps you take to ll it in and have it checked.


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5. Is there a less ormal risk management procedure or personal use,such as a Take 5 or SLAM or Track or such like?

and do you use these when one thing changes, and have you used one or explosives concerns?

6. Do your risk management protocols re er to controlling the risk, and are the controls contained in procedures?


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7. Do you have Sa e Working or Standard Operating Procedures (SWP, SOP)

and are these based on the experience o others?

Where are they kept and how do you use them?


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Are there such procedures or explosive use?

8. Are your procedures monitored by supervisors?

And do these supervisors keep shi t records or diaries to record acts?


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9. Are there records o incidents and are investigations made o unplanned serious events?

10. Do you have toolbox talks, pre-shi t or sa ety meetings in which you getin ormation about serious events and in which you can raise concerns?


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Are these used to review a SWP or SOP to make on-going improvements?


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leaRninG & assessMent tasK 4.7 - RePoRtinG CoMPilinG a set oF ReCoRds

Activity

Compile a suite o typical records maintained in relationto the use o explosives, including a copy o the site sa etypolicy.

This task will require you to track down a variety orecords, so dont get bogged down in detail.

Rather you should begin to see the context o the recordsrom two major perspectives:

1. to see records o the our components o work,

namely the managed working environment, equipmentand materials, people, and processes; and,2. to see how the continuous improvement loop

requires sites to have a clear aim or intentor sa e operation, to have a logical approach

or plan to achieve that aim, to implement theplan, to monitor the plans implementation, andlastly to make on-going improvements basedon the acts derived rom the monitoring.

On every record you might make a note o yourinvolvement in the record-keeping. For example, youmight note this is a copy o the record I (or our team, orthe shot rer, or my/our supervisor, or the maintenanceperson, etc) made on (date) ollowing (the blast, activity,concern expressed, etc).

On another example you might note your review o aprocedure/training etc.


You may be able to obtain a copy o your sitesdocuments rom your supervisor, the person responsible

or magazines, the shot rer on site, a senior blastingsupervisor, technical person or mining/civil engineer, andi that isnt success ul by asking the mine/quarry/civilconstruction manager or even a blasting contractor.

And you can re er back to your Learner Resource 4 Blast

Planning & Reporting.

Write / Draw


Safety


4.7.1 Compile a set o typical records maintained in relation to the use o explosives, including a copy o the site sa etypolicy (make a list o the records in the space below and ask or help rom your supervisor to get ones that you need.This task will require you to track down a variety o records, so dont get bogged down in detai)l. Rather you should

begin to see the context o the records rom two major perspectives:1. to see records o the our components o work, namely the managed working

environment, equipment and materials, people, and processes; and,2. to see how the continuous improvement loop requires sites to have a clear aim or intent (policy) or sa e operation,

to have a logical approach or risk management plan to achieve that aim, to implement the plan, to monitor theplans implementation, and lastly to make on-going improvements based on the acts derived rom the monitoring.


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4.7.2 For every record you might make a note o your involvement in the record-keeping. Forexample, you might note this is a copy o the record I (or our team, or the shot rer, or my/oursupervisor, or the maintenance person, etc) made on (date) ollowing (the blast, activity, concernexpressed, etc). On another example you might note your review o a procedure/training etc..


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4.7.3 Do you need any special help to get copies o important records?

4.7.4 What speci c records are kept or purchasing explosives? (Note: i your site engagesa supplier o explosives to supply and load explosives, what records does you site keep o theexplosives used, as opposed to those actually purchased directly in the sites name)


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4.7.5 Ask and nd out who your site holds as responsible or or custodian o explosivespurchasing, storage and transport and discuss with them their actions to manage purchase,storage, transport and liaison with explosives regulators. Make notes o your discussion.

Purchasing

Storage

Transport


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Liaison with explosives regulators

4.7.6 Discuss with your shot rer or a blasting supervisor what they do

to record blasts (are there various types o blasts?).Type 1

Type 2


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Type 3

including how they learn to re ne their blasting practices by looking at any trends or patterns that blast plans show


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also, how any o the blast plans or results o blasting lead to improvements in the sites blast management plan

and changes to procedures (why and how are they revised)

and changes to your sites blast environmental management approach (including any blast environmental impactplan, procedures or reducing the environmental impacts o blasting, or blast impact monitoring procedures)


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4.7.7 Special Conditions

a. Are there special conditions that exist at your site, such as hot or reactive ground, or gas / dust conditions that yoursite needs to keep track o speci cally in relation to shot ring?

b. I there are, what records are kept, and what use is made o them? (Discuss this with your sites

shot rer(s) and anyone they might re er you to, such as a site, company or consulting geologist)


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c. In particular, is there any monitoring o the conditions that result in special action?

Attach any documents such as your sites or your explosive suppliers mis re procedure here (but be sure to make anote o this in question 4.7.1 above)


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ReCoRd oFleaRninG

evIdenCe GATHeRed duRInG OFF-THe-JOBTRAInInG.

RPL Port olio o evidence o previous training,work or experience in shot ring

RPL Challenge test

Completion o Review Questions in Learner Workbook

Oral questions

Participation in training sessions

Observation checklists or practical situations / simulation

Completion o Learning & AssessmentTasks in Learner Workbook

Assessment eedback

Other

Other

evIdenCe GATHeRed duRInG On-THe-JOBTRAInInG.

Gather evidence or at least 6 blasts including 2 di erenttypes o blasts.

Work Journal/Log Book

Work observation checklists

Third party report

On-site documentation/written work

Oral questions

Statutory declarations

Other

Other


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wHAT HAve YOu dOne ReGARdInG BlAsT PlAnnInG & RePORTInG FOR ITems In THeTABle BelOw?

Include examples rom simulated exercises and rom any shot ring other than in underground coal mines.

B a t P a i g & R porti g What have you done? (Provide a brie description o your work in each or any o the topics; the date, task,who was the prime contact, and any speci c result. Attach a copy o documents where appropriate)

1. d ig / r yb a t

a. Working out where andhow youre going to blast

b. Designing / surveying blasts


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c. Thinking about the basicactors involved in blast design

d. Understanding whathappened in blasts

e. Calculating the burdenand spacing in blasts


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2. Ca c at q a titi oxp o i r q ir

a. For di erent types o blasting

b. Selecting suitablepowder actors

c. Calculatingexplosives required


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3. I tif mIC a ay

a. knowing restrictions onthe amount o explosives

red on any one delay

b. rememberingpublic sa ety too

c. thinking about thetightness o shots and

environmental consequences


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d. adjusting rules o thumbor site experience

e. identi ying problems& possible solutions

. selecting shothole patterns

g. planning blast delays


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4. mo itor iro tai pact

a. being ware oenvironmental impacts

b. identi ying causeso disturbance

c. improving communityawareness


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5. R c b a t i pact

a. controlling variables

b. reducing fyrock risk (notably when sha t sinking / dri ting near the sur ace)

c. reducing dust (notablywhen sha t sinking /

dri ting near the sur ace)


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d. reducing noise orairblast overpressure

e. minimising ground vibrations

6. di po o xp o i

a. collecting andremoving explosives


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b. destroying explosivesand detonators

c. complying withlegal obligations

7. mai taioc tatio a

r porti g

a. supporting asystematic approach


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b. being accountableor records

c. giving commitment tothe site sa ety policy

d. keeping risk management records

e. documenting procedures


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. being involved in training

g. supervising andmaintaining shi t records

h. maintaining site security,inductions and site access

i. maintaining equipmentand acilities


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j. involved with health,production, and environment& community per ormance

k. complying with or en orcingrules & standards

HAve YOu, FOR eXAmPle, COmPIled A wORk JOuRnAl, OR used THe JOuRnAl BelOw

THAT sHOws THAT YOu HAve (even In A sImulATed eXCeRCIse):

do a y or a o tho o i g practica or ?

Y /o

Co t

Been the shot rer or red shotsunder direct supervision or atleast six shots (this normallymeans being the team leader,but it could also mean beingresponsible or the whole shotwhere you might be the only

shot rer. It could also be ina simulated environment.)


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Y /o

Co t

Been responsible or the shotcrew in at least six shots(this may have been underthe indirect supervision osite management and mayhave been under a learnerslicence/permit, or under asimulated environment)

Obtained blast designs or atleast six shots (and have youattached examples o di erent

blast designs. This might havebeen or the same six shots orwhich you were responsible)

Been responsible or checkingshotholes and the preparation

or at least six blasts (whichones were they givedates or blast numbers ordescribe the simulatedenvironemt i this is the case)

Checked the stemming, hook-up and connection o at leastsix shots (again, this mighthave been the same simulatedenvironment as be ore)


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Y /o

Co t

Completed records or at leastsix shots, noting especiallythe diameter o shotholes, theburden and spacing or holeseparation distances, andpowder actors, or con rmingblast designs (these can be,and ideally are the same shotsas or the blast designs didyou keep and attach a copy)

Taken environmental monitoringrecords or any shots

Taken action to reduceenvironmental impacts on any

occasion (what were these,and what was the result)

Disposed o any explosives(this might have been bydisposal o small quantitiesdown shotholes during normalblasting, or it might have beenon special occasions by burningetc have you indicated whatwas the disposal method, whatexplosives were destroyed,why they had to be destroyed,and i any reports were madeto government agencies)


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Y /o

Co t

Checked and maintainedequipment associated withblasting (what was it, whatwas the type o test andwhat were you testing or?Was this in a simulated / training environment)

Been involved in anyimprovements to the sitessa ety systems in relation

to explosives (policy,risk assessments, risk management, procedures,training, supervision,instructions, monitoring,consultation, improvements)

Reported to any governmentagency or applied or any

licences (what was thereport you made or thelicence you applied or?)


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PRaCtiCal

oBseRVationtHiRd PaRtYVeRiFiCationRePoRts:ModUle4 BlastPlanninG &RePoRtinG

Write / Draw

Who should complete this document and why? Thirdparty evidence is evidence gathered rom workplacesupervisors, peers and others to support the making o a judgement. An assessor cannot always observe a learner

or a long period o time and some competency standardsare di cult to observe. There ore third party evidence canbe essential piece o evidence in the assessment process.

The ollowing checklist can be used by assessors and alsoadapted or use by third parties to veri y their observationso the trainee applying their learning.

Please place a tick ( 3 ) or cross ( 5 ) in the boxes asapplicable to veri y Learners competence in the areas

listed below.


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Name o person being observed

The ollowing are my views o my knowledge andexperience against a compilation o elements & per ormance criteria rom the ollowing competencies:

1. RIIBLA202 Support underground shot ring operations2. RIIBLA302 Conduct shot ring in underground coal mines3. RIIBLA401 Manage Blasting Operations

Note: these Units replace Competency Units:MNCU1048B Conduct shot ring operationsMNCU1049B Support Shot ring Operations

MNMUGC118A Charge underground blasts


I ca tat that th p r o b i gob r ca :

Co pu it R

Y /no

n rth r op t a / or xp ri c i

1 d ig / r y b a t

a. Receive,i. interpret,ii. clari y and

iii. con rm andiv. manageblast plans, associated reporting and

related shot ring managementwork requirements, by preliminarysite inspection i necessary

1(1.1)2(1.1,1.3)

3(1.1)

b. Identi y potential hazards/risks associatedwith blast planning and relatedshot ring management work, andi. manage risks including managing risks associated with the

storage, handling and transport o

explosives, charging shotholes, andconnecting and testing circuits, and risks associated with disposal

o explosives and mis res managing on behalf of the

organization, the secure and sa esystems o shot ring-related work

2(2.9)3(1.4, 2)3(4)3(5)3(1.5)

c. Access,i. interpret andii. clari y legislative andiii. site requirements andiv. procedures speci cally carry out

pre-blasting procedures andv. establish exclusion zonevi. or the range o shots on site

2(1.2)

d. Arrange / ensure Survey oblast area to blast plan andi. site requirements is complete, locate position of blast holes and prepare survey reports, and report to appropriate personnel


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Name o person being observed


I ca tat that th p r

sc lw4-ugc blast planning.pdf

Documents