14th Australian Tunnelling Conference

Tim Parker | Project Director City & Southwest | Sydney Metro

Overview

1. Introduction and Context

2. Sydney Metro Overview

3. Northwest update

4. City & Southwest tunnelling

5. Q&A

More than 65 km

31 metro railway stations

Two stages

Northwest 15 km new twin

tunnel

City & Southwest 16 km new

twin tunnel

Sydney Metro Benefits

Customer Experience

Sydney Metro

Stage 1 – 36km

Open first half of 2019

8 new stations; 5 upgraded

4,000 car spaces

Cudgegong

Tunnels & Station Civil (TSC)

Design & construct Driven tunnels, station excavation,

ground support

Surface/Viaduct Civil (SVC)

Epping Bella Vista Cudgegong

Epping Bella Vista Chatswood

Design & construct Surface civil infrastructure (including viaduct), Bella

Vista to Cudgegong

Epping to Chatswood Rail Link (ECRL) existing infrastructure interface

Operations, Trains & Systems (OTS) PPP Partially privately financed (with substantial State contribution)

Deliver railway systems (new and upgraded), trains, stations & precincts Operate services & stations, maintain all assets

Early Civil Works by TfNSW

Chatswood

Epping to Chatswood Rail Link (ECRL) enabling works by TfNSW

Integration Activities by TfNSW

Sydney Metro Northwest delivery

Sydney Metro Northwest

Industry participants – sectors and countries

Tunnelling (TSC)

Tunnelling

More than 2.5 million tonnes of rock excavated

100% crushed rock recycled

98,184 concrete segments

98,184 concrete segments

16,290 waterproof rings

More than 3,600 tonnes of cement

18 months, 635,000 working hours

Tunnelling (TSC) – Pre-cast Facility

Site was demobilised as of March 2016

State of the art launch gantries

from Dubai

Gantries to lift segments into

place – enabling main arterial

roads to remain open during

construction

121 piers

1,200 segments

124 spans

Skytrain - SVC

Sydney Metro: City & Southwest

Chatswood to Sydenham EIS exhibition Q2

2016

Start construction 2017

Start major contract procurement Q3- Q4 2016

Sydenham to Bankstown EIS exhibition 2017

First TBM 2018

Operations 2024

Metro Alignment Design - Theoretical

Stations equally spaced

Slight vertical between each station

Tunnels are in parallel

Straight alignment – no curves

If curves – long radius

Metro Alignment Design - Reality

Natural constraints

– Geotechnical condition

– Land levels

Station locations

– Customer based

– Land availability

Natural Constraints

Geotechnical Investigation

Harbour Crossing

Other tunnels

Ground Investigation CBD

Stage 1

– 26 Land boreholes

– 22 Marine boreholes

– 30 Cone Penetration Testing (CPT)

Stage 2

City

– 29 Boreholes

– 13 CPT

– 10 test pits

Southwest

– 128 investigation holes

Ground Investigation Harbor

Planned

• Geophysics

• Diamond coring + Standard Penetration Test (SPT)

• In-situ stress testing

Additional

• CPT testing

• Denison Sediment sampling

• Upper sediment testing

• Further Geophysics

• Seismic

• Borehole tomography

• Resistivity

Natural Constraints

Geology

Underground Constraints

Other tunnels

Maximum gradients

Underground stations – Passenger focused

Utilities

Rock anchors

Artist’s impression of Martin Place Interchange

Harbour Crossing Alignment

Option 1 – Rock TBM

Deep sediments

Option 2 – Soft ground TBM

Option 3 – Shallow IMT

Harbour Crossing Alignment

Metro Alignment Design Reality

Metro Alignment Design Reality

Contracting strategy – City & Southwest

Reference

Tunnelling

Strategy

Harbour – Ground Treatment

TSE Procurement Strategy

• Progressive Industry Engagement

• Early Release of Design and Investigation Results

• Expression of Interest to respond to Technical Aspects

• Intensive Interactive Tender Process

TSE

Currently out to tender

Two consortia shortlisted and invited to tender

– The John Holland CPB Ghella Joint Venture, made up of John

Holland Pty Ltd, CPB Contractors Pty Ltd and Ghella Pty Ltd

&

– The Ferrovial, Acciona Ltd and BAM Joint Venture, made up of

Ferrovial Agroman (Australia) Pty Ltd, Acciona Infrastructure

Australia Pty Ltd and BAM International Australia Pty Ltd

Tender closes at the end of the year

Tender will be awarded in mid 2017

Thank you