fourth international symposium on block … international symposium on block and sublevel caving acg...

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FOURTH INTERNATIONAL SYMPOSIUM ON BLOCK AND SUBLEVEL CAVING

15–17 October 2018 | Vancouver Convention Centre | Vancouver, CanadaThe growing popularity of caving methods around the world is largely due to the very low production cost and the intrinsic safety associated with the mining approach. It is often the only viable mining method for some of the lower grade massive orebodies that are becoming too deep for open pit mining.

Strategically, most medium and large mining companies are operating or planning to operate a caving mine. Codelco’s El Teniente Mine in Chile and the LKAB’s Kiirunavaara Mine in Sweden are among the largest and most famous caving operations in the world.

Cave mining has become one of the most research intensive areas of mining engineering in recent times. Mining companies need to be kept informed of the latest

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Collaborating Organiser

technological developments f r o m c a v i n g r e s e a r c h , and researchers require a regular platform to present their results and interact with industry practitioners.

The Australian Centre for Geomechanics looks forward t o h o s t i n g t h e Fo u r t h International Symposium on Block and Sublevel Caving in Vancouver. This follows previous symposia held in Santiago in 2014; Perth, 2010 and Cape Town, 2007.

SUNDAY | 14 OCTOBER

MONDAY | 15 OCTOBER

TUESDAY | 16 OCTOBER

WEDNESDAY | 17 OCTOBER

THURSDAY | 18 OCTOBER

FRIDAY | 19 OCTOBER

SRK Cave Mining Forum Workshop

Fourth International Symposium on Block and Sublevel Caving

ACG Ground Support in Cave

Mining Workshop

Site Visit to New Afton Mine

Symposium Dinner

SEE INSIDE

FOR LIST OF

RECEIVED

PAPERS

Principal Sponsor

EARLYBIRD

REGISTRATION

EXPIRES

3 SEPTEMBER

2018

CAVING 2018 RECEIVED PAPERS*

KEYNOTE PAPERS

KEYNOTE: Optimising for success at the Grasberg Block Cave R Campbell, Freeport-McMoRan, USA; H Banda, J Fajar, PT Freeport Indonesia, Indonesia; C Brannon, Freeport-McMoRan, USA

KEYNOTE: Key geotechnical knowledge and practical mine planning guidelines in deep, high-stress, hard rock conditions for block and panel cave mining D Cuello, G Newcombe, Newcrest Mining Ltd, Australia

CASE STUDIES

Underground mining at Ekati and Diavik Diamond Mines J Jakubec, D Lagacé, SRK Consulting (Canada) Inc., Canada; B Boggis, Dominion Diamond Mines, Canada; Lyndon Clark, Philip Lewis, Rio Tinto, Australia

Sublevel retreat mining in the subarctic: a case study of the Diavik Diamond Mine PA Lewis, LM Clark, SJ Rowles, CP Auld, CM Petryshen, AP Elderkin, Rio Tinto, Canada

Evaluation of caving as mining method for the Udachnaya underground diamond mine project M Tishkov, M Vishnevskaya, ALROSA PJSC, Russia

CAVING MECHANICS

A re-evaluation of the conceptual model of caving mechanics D Cumming-Potvin, J Wesseloo, Australian Centre for Geomechanics, Australia; SW Jacobsz, E Kearsley, University of Pretoria, South Africa

Benchmarking and its application for caving projects IT Ross, CaveConsult Pty Ltd, Australia

Safely reopening a collapsed extraction level drive in a resource limited environment NA Shea, RW Sinclair, TM Welsh, Climax Molybdenum, USA

Investigating and assessment of effecting parameters on rock mass cavability in block caving mines using the decision making trial and evaluation laboratory technique F Sotoudeh, R Rafiee, M Ataei, RN Masir, Shahrood University of Technology, Iran

DRAW CONTROL, FLOW MODELLING & FRAGMENTATION

Optimisation of the caving problem – a reinforcement learning approach M Allan, Resolute Mining Ltd, Australia

Full-scale experiments to measure the effect of cross-cut height on recovery in sublevel cave mines AD Campbell, The University of Queensland, Australia

The effect of blast ring burden and explosive density on fragmentation and ore recovery in sublevel cave mines AD Campbell, The University of Queensland, Australia

Hang-ups analysis and modelling for Cadia East PC1-S1 and PC2-S1 R Castro, BCTEC Engineering and Technology, Chile; D Cuello, Newcrest Mining Limited, Australia

Simulating gravity flow in caving mines through FlowSim R Castro, A Altamirano, D Guzman, BCTEC Engineering and Technology, Chile

Palabora Lift 1 block cave: understanding the grade behaviour T Diering, Dassault Systémes Canada, Canada; SN Ngidi, JJ Bezuidenhout, HD Paetzold, Palabora Mining Company, South Africa

Influence of rock mass veining and defects on secondary fragmentation during block caving L Dorador, E Eberhardt, D Elmo, University of British Columbia, Canada

Grade control and segregation at New Gold’s New Afton block cave operation, Kamloops, BC MG Henning, New Gold Inc., Canada

Application of mathematical modelling for draw control under material flow uncertainty F Khodayari, Y Pourrahimian, University of Alberta, Canada; E Ben-Awuah, Laurentian University, Canada

Cave to mill: improving value of caving operations A Moss, B Klein, S Nadolski, University of British Columbia, Canada

Presence of natural fracture as an indicator of operational difficulty for future cave operations M Munkhchuluun, Oyu Tolgoi, Mongolia; D Elmo, S Nadolski, Institute of Mining Engineering, Canada; A Moss, Sonal Mining Technology, Canada; B Klein, Institute of Mining Engineering, Canada

An approach to evaluating block and panel cave projects for sensor-based sorting applications S Nadolski, B Klein, University of British Columbia, Canada; C JR Hart, Mineral Deposit Research Unit, Canada; A Moss, D Elmo, University of British Columbia, Canada

Non-vertical cave and dilution modelling at New Gold’s New Afton Mine J Parsons, D Hamilton, New Gold Inc., Canada; C Ludwicki, Dassault Systèmes, Canada

Testing the suitability of radio frequency identification device cattle tags for tracking block cave progression ML Wilson, GJ van Hout, FF Dean, Rio Tinto, Australia

EQUIPMENT AND AUTOMATION

Underground roadway design considerations for efficient autonomous hauling RJ Thompson, H Malekzehtab, Curtin University, Australia

Application of telepresence systems for accelerated re-entry and inspection after seismic events J Cronin, Australian Droid and Robot, Australia; D Gilbreath, Rajant Corporation, USA

GROUND SUPPORT

Rapid mine development using efficient in-cycle shotcrete F Erismann, B Lindlar, Sika Services AG, Switzerland; M Corner, Sika Canada, Canada; C Munoz, Sika Chile, Chile; M Hansson, Sika Sweden, Sweden; R Erlangga, Sika Indonesia, Indonesia

Characterising the behaviour of rockbolts based on in situ pull tests J Hadjigeorgiou, P Tomasone, University of Toronto, Canada

Influence of the undercut height on the behaviour of pillars at the extraction-level in block and panel caving operations E Hormazabal, R Álvarez, A Russo, D Acevedo, SRK Consulting (Chile) S.A, Chile

Discrete element modelling of a laboratory static test on welded wire mesh E Karampinos, B Baek, J Hadjigeorgiou, University of Toronto, Canada

An empirical comparison between new and existing laboratory-based, dynamic sample configurations G Knox, A Berghorst, P de Bruin, New Concept Mining, South Africa

Numerical modelling of dynamic testing for rock reinforcement used in underground excavations E Marambio, JA Vallejos, L Burgos, Advanced Mining Technology Centre, Chile; C Gonzalez, MIRARCO Mining Innovation, Canada; L Castro, JP Saure, Compañia Siderúrgica Huachipato, Chile; J Urzúa, Teiko Ingeniería Ltda., Chile

Using a structured data management system to improve mine development efficiencies E Savage, T Moorcroft, Oyu Tolgoi LLC, Mongolia; S Talu, Rio Tinto, Australia

www.caving2018.com

*Listed by theme. The received papers list is subject to change. For updates, please visit www.caving2018.com

INSTRUMENTATION

Development of a monitoring network for surface subsidence at New Gold’s New Afton block cave operation MA Clayton, M Dugie, A LeRiche, C McKane, BGC Engineering Inc., Canada; A Davies, New Gold Inc., Canada

InSAR monitoring of subsidence induced by underground mining operations G Falorni, S Del Conte, TRE Altamira Inc, Canada; F Bellotti, D Colombo, TRE Altamira SRL, Italy

InSAR as a practical tool to monitor and understand large-scale mining-induced ground deformations in a caving environment K Mäkitaavola, B-M Stöckel, T Savilahti, Luossavaara-Kiirunavaara AB, Sweden; J Sjöberg, Itasca Consultants AB, Sweden; J Dudley, MA McParland, R Morin, MDA Geospatial Services, Canada

MUD RUSH

Mud rush in the dessert? Early cave management for the Carrapateena sublevel cave R Hocking, G Balog, T Ormerod, H Pearce, Oz Minerals, Australia

NUMERICAL MODELLING

Automation in caving operations – the business case J Mowen, M Allan, J Cronin, Resolute Mining Ltd, Australia

Suggested methods for estimation of confined strength of heterogeneous (defected) rocks N Bahrani, Dalhousie University, Canada; PK Kaiser, Laurentian University, Canada; A Corkum, Dalhousie University, Canada

Three-dimensional simulation of cave initiation, propagation and surface subsidence using a coupled finite difference – cellular automata solution Y Hebert, G Sharrock, Itasca Australia Pty Ltd, Australia

Two-dimensional discontinuum modelling of large-scale footwall stability at the Luossavaara-Kiirunavaara AB Kiirunavaara sublevel cave mine M Svartsjaern, Itasca Consultants AB, Sweden; D Saiang, Luleå University of Technology, Sweden; K Mäkitaavola, Loussavaara-Kiirunavaara AB, Sweden

PLANNING, DESIGN AND SCHEDULING

Developing caving projects using CaveLogic M Arancibia, F Soto, Maptek Chile, Chile

Integrated simulation and optimisation tools for production scheduling using finite element analysis caving geomechanics simulation coupled with 3D cellular automata S Arndt, Monash University, Australia; T Bui, T Diering, Dassault Systèmes, Canada; I Austen, Newcrest Mining Ltd, Australia; R Hocking, Oz Minerals, Australia

Grasberg block cave mine: cave planning and undercut sequencing D Beard, C Brannon, Freeport-McMoRan Inc., USA

Development and implementation of the short term activity tracker and mine control trigger response system C Chester, D Cuello, Newcrest Mining Limited, Australia; G Basson, Institute of Mine Seismicity, Australia

Maximising resource utilisation in scheduling of underground mining works of multiple faces D Cortés, Y Martínez, Codelco, Chile; M Silva, Züblin, Chile

Oyu Tolgoi cave mine development planning K Crook, F Prince, Rio Tinto, Australia

Footprint finder tool for sublevel caving T Diering, Dassault Systémes Canada, Canada; F Breed, The De Beers Group of Companies, Canada

Overview of mine planning process for Oyu Tolgoi underground project S Fowke, B Groeneveld, Rio Tinto, Australia

Geotechnical data collection and approach to modelling for Cukaru Peki deposit K Llewelyn, SRK Consulting (UK) Limited, UK; J Jakubec, SRK Consulting (Canada) Inc., Canada; R Goddard, SRK Consulting (UK) Limited, UK; P Stenhouse, Polyphase Consulting Limited, New Zealand

A systems approach to mining innovation D Morrison, V Drylie, Centre for Excellence in Mining Innovation, Canada; P Labreque, Labrecque Technologies inc., Canada

Optimisation of the undercut level elevation in block caving mines using a mathematical programming framework R Noriega, Y Pourrahimian, WL Victor, University of Alberta, Canada

Chuquicamata underground mine design: the simplification of the ore handling system of Lift 1 P Paredes, T Leaño, L Jauriat, Codelco, Chile

Maximising volumetric efficiency for ventilation systems in temporarily reduced flow environments of block cave mines G Schult, B Prosser, SRK Consulting (U.S.) Inc., USA; D Brown, J Wolgram, Rio Tinto, Australia

Reducing geotechnical problems in block caving by increasing productive capacity KJ Shelswell, PO Labrecque, Labrecque Technologies Inc., Canada; DM Morrison, Centre for Excellence in Mining Innovation, Canada

Design of a new layout for sublevel caving at depth C Quinteiro, Luossavaara-Kiirunavaara AB, Sweden

RESEARCH

Review and simulation of passive seismic tomography in block cave mining SG Afrouz, EC Westman, Virginia Tech, USA

Numerical simulations of a centrifuge model of caving D Cumming-Potvin, J Wesseloo, Australian Centre for Geomechanics, Australia; M Pierce, Pierce Engineering, USA; T Garza-Cruz, L Bouzeran, Itasca Consulting Group, USA; SW Jacobsz, E Kearsley, University of Pretoria, South Africa

Understanding and managing surface subsidence at New Gold’s New Afton block cave operation AGL Davies, DB Hamilton, New Gold Inc., Canada; MA Clayton, BGC Engineering Inc., Canada

Strategy for mining research and development in the cave mining industry GA Ferguson, Seltrust Associates Limited, UK; D Cuello, Newcrest Mining Limited, Australia; P Gandara, Codelco, Chile Y Potvin, Australian Centre for Geomechanics, Australia; E Rojas, Codelco, Chile

The role of research in cave mining SD McKinnon, Queen’s University, Canada; GA Ferguson, Seltrust Associates Limited, UK

Back-analysis of PC1 cave propagation and subsidence behaviour at the Cadia East Mine B Sainsbury, Deakin University, Australia; D Sainsbury, Noma Consulting, Australia; D Carroll, Newcrest Mining Limited, Australia

SEISMICITY

Identifying a migrating stress front using apparent stress for an unplanned rock mass cave LG Brown, MR Hudyma, Laurentian University, Canada

Application of sequential spatial clustering and fractal dimension to caving seismic event parameters of time, distance and intensity DM Cortolezzis, MR Hudyma, Laurentian University, Canada

Physics-based hazard assessment tools for developing blanket re-entry rules W de Beer, ESG Solutions, Australia; L Smith, G Viegas, K Bosman, D Angus, ESG Solutions, Canada

www.caving2018.com



The influence of stress and seismicity on the performance of a sublevel caving operation HCJ Esterhuizen, Ernest Henry Mine, Australia

Leinster cave seismic risk management: a block cave solution M Hopkins, R Rimmelin, A Landon, BHP, Australia

Evaluating the effect on seismicity of a hydraulic fracturing trial using Bayesian data analysis K Jonsson, J Martinsson, Luossavaara-Kiirunavaara, Sweden

Tracking cave shape development with microseismic data R Lynch, S Meyer, E Lotter, Institute of Mine Seismology, Australia; J Lett, Newcrest Mining Limited, Australia

Analysis of damaging seismic event on 24 December 2011 in the Pilar Norte sector of El Teniente mine D Malovichko, Institute of Mine Seismology, Australia; D Cuello, Newcrest Mining Limited, Australia; E Rojas, Codelco, Chile

Microseismic monitoring of the Oyu Tolgoi Hugo North Lift 1 JP Mercier, Rio Tinto, Mongolia; A van As, Rio Tinto, Australia; C Carlson, B Tumur-Ochir, Rio Tinto, Mongolia

Rapid assessment of the spatial extent of strong ground motion in mines: ShakeMap approach S Meyer, Institute of Mine Seismology, Australia; J Doolan, C Chester, Newcrest Mining Limited, Australia; G Basson, Institute of Mine Seismology, Australia

Mapping cave front growth utilising the collective behaviour of seismicity and velocity fields G Viegas, K Bosman, D Angus, ESG Solutions, Canada; W de Beer, ESG Solutions, Australia; T Urbancic, ESG Solutions, Canada

Progression and management of seismic hazard through the life of Telfer sublevel cave MJ Woods, ME Poulter, RG King, Newcrest Mining Limited, Australia

www.caving2018.com



ENJOYING VANCOUVER, CANADAVancouver is a busy seaport in British Columbia on Canada’s west coast. It is among Canada’s most densely populated and ethnically diverse cities. It is surrounded by mountains, and also has a thriving cultural scene.

For information on travelling to Canada, please see www.cic.gc.ca/english/visit/eta.asp

For information on enjoying your stay in Vancouver, please visit www.hellobc.com.au or www.tourismvancouver.com

www.caving2018.com

COMMITTEE MEMBERS

Associate Professor Davide ElmoAssociate Professor (Rock Mechanics)University of British Columbia, Canada

Jarek JakubecCorporate Consultant & Caving 2018 Symposium ChairSRK Consulting (Canada) Inc., Canada

Professor Yves PotvinDirectorAustralian Centre for Geomechanics, Australia

Professor Doug SteadChair, Resource GeotechnicsSimon Fraser University, Canada

Andy DaviesGeotechnical Project ManagerNew Gold Inc., New Afton, Canada

KEYNOTE SPEAKERS

Ryan CampbellChief Geomechanical SpecialistFreeport-McMoran, USA“Optimising for success at the Grasberg block cave”

David CuelloPrincipal Geotechnical EngineerNewcrest Mining Limited, Australia“Key geotechnical knowledge and practical mine planning guidelines in deep, high stress, hard rock conditions for block and panel cave mining”

Craig StegmanVP Operational & Technical SupportRio Tinto, Australia

This interactive and informative Cave Mining Forum (CMF) workshop will explore both the technical and practical aspects of rehabilitation in cave mining operations. The workshop is designed to assist mining personnel involved with operations to face difficulties in cave mine rehabilitation.

CAVE MINING FORUM WORKSHOPSunday 14 October 2018 | Vancouver, Canada

Fourth International Symposium on Block and Sublevel Caving15–17 October 2018 | Vancouver, Canada

ABOUT THE WORKSHOP

Mine managers, mining engineers and geologists, mining supervisors and operators, mining contractors and consultancies and mines inspectors may benefit from attending the workshop. The workshop attendees will also benefit forum the ACG workshop that specifically focusses on ground support technologies.

WHO SHOULD ATTEND?

• Types of ground instability challenges in sublevel and block/panel caving mines – past experience

• Uncertainty and risk assessment of the cave mine project• Rehabilitation methods• Economic evaluation – is it worth it?• Case studies

WORKSHOP TOPICS

For further information, and to register, please contact Alice Huynh at [email protected].



www.caving2018.com

CAVING 2018 SITE VISIT - NEW GOLD NEW AFTON MINE Friday 19 October 2018 | New Afton, West of Kamloops | British Columbia

The New Afton copper-gold mine is located approximately 350 km northeast of Vancouver in the south-central interior of British Columbia. The property is only 10 km from the regional hub of Kamloops.

The New Afton Mine occupies the site of the historic Afton Mine, a previous operation of Teck Resources Limited and includes an open pit, underground workings, historic support facilities, a concentrator and tailings facility. The New Afton deposit extends to the southwest from immediately beneath the Afton Mine open pit. New Afton began production in June 2012 and began commercial production ahead of schedule in July 2012. The underground operation is expected to produce, on average, 85,000 ounces of gold and 75 million pounds of copper per year over a 12 year mine life. New Afton uses a block caving method in their underground operations.

The ACG thanks New Gold Inc. for their generous time and resources to host the visit.

This visit is restricted to Caving 2018 Symposium attendees and spaces are strictly limited. Site visit fee and further details are to be advised. Register your interest via [email protected]

ACG GROUND SUPPORT IN CAVE MINING WORKSHOP Thursday 18 October 2018 | Vancouver, Canada

WORKSHOP FACILITATOR

Professor Yves PotvinDirectorAustralian Centre for Geomechanics, Australia

This interactive and informative ACG workshop will explore both the technical and practical aspects of ground support in cave mining operations. The workshop is designed to assist mining personnel involved with the design and implementation of cave mining ground support.

ABOUT THE WORKSHOP

Mine managers, mining engineers and geologists, mining supervisors and operators, suppliers of ground support equipment, mining contractors and consultancies and mines inspectors may benefit from attending the workshop.

WHO SHOULD ATTEND?

• Block/panel caving undercut level support strategies and practices

• Block/panel caving extraction level support strategies and practices

• Sublevel caving ground support• Drawpoint construction and support• Ground support in rockburst prone conditions• New products/suppliers’ session

WORKSHOP TOPICS

Visit acg.uwa.edu.au/sponsorship for the workshop sponsorship proposal



The symposium sponsor pack is available for download at

www.caving2018.com

Sponsor and exhibitor opportunities are available for the Fourth International Symposium on Block and Sublevel Caving. The symposium is an excellent platform to enhance your presence in the market and position your organisation as one of the leaders in the industry. ACG sponsors and exhibitors enjoy numerous benefits, including:

• Direct access and exposure to a niche target audience• Increased brand awareness• Achieving a high profile association with an innovative and credible industry event

CAVING 2018 SPONSORSHIP OPPORTUNITIES

Trade Exhibitors



www.caving2018.com

Lanyard Sponsor

Principal Sponsor

Major Sponsor

PAYMENT OPTIONS Electronic Funds Transfer (EFT): Please return this completed form to [email protected]

and the ACG will send you an invoice with EFT details included.

PO# (if required)_______________________

Credit Card:

Please return this completed form to [email protected] and the ACG will send you a credit authorisation form. (Visa and Mastercard are the only cards we accept).


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CONTACT DETAILSPlease print. *denotes mandatory fields.

*Title (Mr, Mrs, Miss, Ms, Dr, Prof., Other) _____________________________

*Family Name _____________________________________________________

*First Name _______________________________________________________

Preferred Name ___________________________________________________

*Position _________________________________________________________

*Organisation _____________________________________________________

*Mine/Dept _______________________________________________________

*Address __________________________________________________________

__________________________________________________________________

Phone ____________________________________________________________

Fax ______________________________________________________________

Mobile ___________________________________________________________

*Email ____________________________________________________________ *All confirmations/event updates will be sent via email.

Registrant contact details are intended to be published in the events authorised attendee list made available to event attendees, sponsors and exhibitors, who may contact you, including electronically, in the promotion of their products and services.

I give permission for my details to be included in the Caving 2018 and associated events attendee lists.

I give permission for the ACG to forward me ACG research, training and/or education information advice, including electronic communications.

I require an invitation letter for visa purposes (please forward a copy of your passport information page). For more information regarding Canadian visas, please visit https://www.canada.ca/en/services/immigration-citizenship

DELEGATE CANCELLATIONSUp to 8 days before event commencement: an administration fee of AUD150/CAD155 will be charged. 7 or less days before: no refund. Non-attendance: no refund. Substitutions will be accepted at any time. The ACG reserves the right to cancel the seminar and associated events if insufficient registrations are received.

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† Please visit www.acg.uwa.edu.au/corporate-affiliate/ to view the list of ACG Corporate Affiliates.

^ Students are required to provide proof of full-time enrolment.

Caving 2018 Symposium (1815) | 15–17 October 2018

Paid until 3 Sept 2018

Earlybird AUD/CADPaid after 3 Sept 2018

Standard AUD/CAD

Standard 1150/1180 1350/1390

ACG Affiliate† 880/900 1150/1180

Student^ 270/280 405/420

ACG Ground Support in Cave Mining Workshop (1817) 18 October 2018

Paid until 3 Sept 2018

Earlybird AUD/CADPaid after 3 Sept 2018

Standard AUD/CAD

Standard 550/570 880/900

ACG Affiliate† 420/435 675/690

Student^ 130/140 270/280

Caving 2018 Printed Proceedings (Softbound, colour) (Symposium special)

AUD/CAD 150/155

PAYMENT Total payment AUD/CAD __________________Payment to be received by 12 October 2018. All bank fees are the responsibility of the registrant. All prices include GST. ABN 37 882 817 280

All full registrations will receive luncheons and refreshments. Symposium papers will be accessible at papers.acg.uwa.edu.au from 8 October 2018. If you would like a printed copy of the proceedings, please tick the box below.

IMPORTANT NOTE Caving 2018 Symposium speakers please do not fill out this form. Speakers will be contacted by the ACG upon acceptance of their paper and will be sent a speaker registration form. The speaker registration fee for the Caving 2018 Symposium is AUD1,100/CAD1,125.

Caving 2018 Symposium Dinner 16 October 2018

AUD/CAD 150/155

Please notify us below of any special dietary requirements.

__________________________________________________________

SRK Cave Mining Forum Workshop 14 October 2018Please contact [email protected] to register

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fourth international symposium on block … international symposium on block and sublevel caving acg...

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