Investigations after the disaster –Informing the decision makersPaul Burton

What’s under the roads?• Overview and awareness• Ambulance at the bottom of the cliff? Driving it to the top…• TC3 – collaborative investigations – a temporary team• Horizontal Services – profiling• Learnings

TC3 - Outline

• What happened?• 2010 – response• 2011 – response• TC3• The benefits• The challenges

Canterbury Earthquake Sequence

• 4 Major Events

• 4th September 2010 – 7.10 – 11km deep• 22nd February 2011 – 6.41 – 6.9km deep• 13th June 2011 – 6.34 – 6.0km deep• 23rd December 2011 – 6.00 – 7.0km deep

Canterbury Earthquake Sequence

• 4 Major Events

Site Investigations

• Our work is focusing on site investigations for

• September 4th 2010• February 22nd 2011

September 2010 – Liquefaction damage

February 2011 – Liquefaction damage

September 2010 - Scope

• CBD still intact• Travel not highly affected around area• Service plans easily sought – paper• Flexible staff from various offices• Based in T&T office, Kilmore St.

September 2010 - Scope

February 2011 - Scope

• CBD still not intact

February 2011 - Scope

• Travel not highly affected around area

February 2011 - Scope

• Service plans not easily sought – paper , iPads– service providers worrying about supply andtheir own offices.

February 2011 - Scope

• Flexible staff from various offices companies• 20+ suppliers• Over 100 seconded personnel• 20 sub-contractors• Over $4million to seconded/contractors• CETANZ members contacted first.

February 2011 - Scope

• Based in T&T office, Kilmore St.• Moved to T&T Parkhouse Rd

• Moved to Geotechnics Parkhouse Rd• Moved to TC3 office Stanmore Rd

February 2011 - Scope

• Based in T&T office, Kilmore St.• Moved to T&T Parkhouse Rd

• Moved to Geotechnics Parkhouse Rd• Moved to TC3 office Stanmore Rd

February 2011 - Scope

• Based in T&T office, Kilmore St.• Moved to T&T Parkhouse Rd

• Moved to Geotechnics Parkhouse Rd• Moved to TC3 office Stanmore Rd

February 2011- What is TC3?

February 2011- What is TC3?

February 2011- What is TC3?

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

February 2011 – TC3

Christchurch Scope & Programme

Christchurch TC3

Christchurch TC3

Benefits

• Canterbury Recovery – faster• Uses wider resource available• Opportunity for individuals and companies• Wider industry collaboration• Development of best practice• Wider acceptance of standard practice

Challenges

• Health & Safety• The Prisoner’s Dilemma• Ever moving goal posts• International peer review• Logistics – diverse backgrounds

An outstanding team

SCIRT Pipe MonitoringEmbracing the ‘Poo’ with Excellence &Innovation:

- Creating- Collaborating- Problem solving- Going the extra mile

The Challenges

- Sheer volume of work- Mobile operation- Nearly all manholes located on

roads- Poor condition of roads

(volume of roadworks/driverbehaviour)

- Weather conditions(implications for staff andprofilometer

- Health and hygiene (prior allhad tetanus, Hep A and Hep Binjections)

- Quantity of (stressed) residentsat home

-2.65

-2.6

-2.55

-2.5

-2.45

-2.4

-2.35

-2.3

-2.25

-2.2

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00

Elev

atio

n(m

belo

wU

/Sm

anho

le)

Pipe Distance (metres)

Sewer Profile_July 26 2012_19282_18755 d/s to 18756 u/s_Putake Drive

-2.4

-2.35

-2.3

-2.25

-2.2

-2.15

-2.1

-2.05

-2

-1.95

-1.9

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00

Elev

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n(m

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/Sm

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le)

Pipe Distance (metres)

Sewer Profile_29 May 2013_23516_23002 d/s to 23001 u/s_Leaver Terrace

-2.85

-2.8

-2.75

-2.7

-2.65

-2.6

-2.55

-2.5

-2.45

-2.4

-2.35

-2.3

-2.25

0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00

Elev

atio

n(m

belo

wU

/Sm

anho

le)

Pipe Distance (metres)

Sewer Profile_November 18 2013_24331_23778 d/s to 23777 u/s_Halsey Street

-1.35

-1.3

-1.25

-1.2

-1.15

-1.1

-1.05

-1

-0.95

-0.9

-0.85

-0.8

0.00 10.00 20.00 30.00 40.00 50.00

Elev

atio

n(m

belo

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/Sm

anho

le)

Pipe Distance (metres)

Sewer Profile_March 18 2014_9125_9115 d/s to 9116 u/s_Dulles Place

No previous sewerexperience: potentialchallenges unknown

The rigid metal extension preventsthe nozzle from bending into thelateral property connection andreduces the occurrence of‘blowback’

Blow Back

The manhole hatch eliminates the risk of theopen manhole while profiling

Manhole Hatch

Non-slip floor surface

The profilometer guidewheel was designed toeliminate the requirementsfor Confined Space Entry,thereby significantlyreducing hazards to staff

Profilometer GuideWheel

The profilometer cable is easilyinserted into the sewer pipe fromthe surface without snagging

Cap is unscrewed, removedand replaced using thisdevice

Design of a cap removaldevice eliminates therequirement for ConfinedSpace Entry

Cap Removal Device

The purpose built manhole cover remains inplace at the jetting truck end of theoperation while jetting is carried out. Thiseliminates a fall hazard.

Manhole Cover

Tally to date:148.3kms profiled2340 assets

Bill Perry Safety Award

Regional award foroutstanding safetyinnovations, that havebeen successfullyimplemented and haveimpacted across thewider industry

Site Safe – AWF GroupSafety Innovation Award

Overview• 2 of the many Christchurch projects• It’s all about the people• And the data• Informing decision makers now and into the future.

Thank you for your attention

• Thank you to:-• EQC• SCIRT• Geotechnics• Tonkin + Taylor• CETANZ• All companies that supplied and seconded staff