robert ioffrida - lend lease

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  • NorthConnex Technical Presentation13th Australian Tunnelling Conference

    Presented by Robert Ioffrida, Project Director

  • Project Overview

  • Who is delivering NorthConnex?

    3

    http://www.google.com.au/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=0CAcQjRw&url=http://www.rms.nsw.gov.au/&ei=OHsGVfu4OcOVaq7mgfAM&bvm=bv.88198703,d.d2s&psig=AFQjCNFYPtgivBefg7M59pNnTyuVz1Xpaw&ust=1426574516741910http://www.google.com.au/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&ved=0CAcQjRw&url=http://www.rms.nsw.gov.au/&ei=OHsGVfu4OcOVaq7mgfAM&bvm=bv.88198703,d.d2s&psig=AFQjCNFYPtgivBefg7M59pNnTyuVz1Xpaw&ust=1426574516741910

  • Project - Key Stakeholders

    Transurban, Canada Pension Plan and QIC

    Client (Project Co.)

    Lendlease Bouygues JV (50/50)Contractor

    Aurecon SMEC JV (50/50)Designers

    Lendlease Bouygues Joint Venture

  • Project - Key Dates

    13 January 2015Project Approval

    18 June 2015Start Construction

    3rd Qtr 2015Start Tunnelling

    4th Qtr 2019Completion

    Lendlease Bouygues Joint Venture

    5

  • Project Expected Project Personnel

    400 +LLBJV Staff

    160+LLB/UGL Alliance

    Staff

    500+ 300+ Tunnelling and 200+ Civil Employees

    LLBJV Direct Labour

    800+ (including M&E)Contractor

    Partners

    Lendlease Bouygues Joint Venture

  • What is NorthConnex?

    NorthConnex will provide the vital

    link between Hills M2 Motorway

    and the M1 Pacific Motorway.

    Two key components Tunnel and

    M2 Integration Works

    Australias longest and deepest road

    tunnel longer than the Eastern

    Distributor, M5 East and Cross City

    tunnels combined

    Lendlease Bouygues Joint Venture

    7

  • Project scope

    Twin motorway tunnels - nine kilometres in

    length / two lanes plus a breakdown lane in

    each direction, and a speed limit of 80 km/h (or

    90?)

    Each tunnel will be built with future capability to

    provide three lanes in each direction at reduced

    speed

    A northern interchange connecting with the M1,

    the Pacific Highway & Pennant Hills Road

    A southern interchange connecting with the Hills

    M2 Motorway and Pennant Hills Road

    Lendlease Bouygues Joint Venture

    8

  • A motorway control centre and ancillary

    buildings, southern and northern ventilation

    outlets and water treatment plant near the

    southern interchange

    Ancillary facilities for operation, such as

    electronic tolling facilities, ventilation

    facilities as well as fire and life safety

    systems

    Two additional smoke exhaust shafts in the

    event of an underground fire

    Modifications to service utilities and

    associated work at surface roads near the

    two interchanges

    Lendlease Bouygues Joint Venture

    9

    Project scope cont.

  • Pioneer Avenue Construction Compound

    M2 Integration Works

    Project Map

  • Tunnelling Basic schemeMain construction sites

    Southern Interchange M2 Portal

    Wilson Road Smoke Extraction Shaft

    Trelawney Street Smoke Extraction Shaft

    Northern Interchange - M1 Portal

    Southern InterchangeM2 Portal

    WILSON SHAFT

    TRELAWNEYSHAFT

    M1 InterchangeNorth Portal

    11

  • Tunnelling major quantities

    Scope Quantity

    Tunnel length - mainline tunnel 16,313 m

    Tunnel length - cross passage only 1,375 m

    Tunnel length - on and off ramp 3,177 m

    Tunnel length - Y Junctions 1,050 m

    Quantity - cross passages 75 pc

    Quantity - substation underground 2 pc

    Quantity - low point sumps underground 1 pc

    Quantity - shafts 4 pc

    Excavation total 2,250,000 m3

  • Project Design Features

  • Standard Cross Section Main Carriageway

    2 lane tunnel designed for future 3 lane use

    Dynamic envelope = 10.5m x 5.3m

    Tunnel Concept :

    - Mechanized excavation using road headers / rock boltings and shotcrete

    - Drained tunnel: 1l/s/km allowable water inflow limit.

    - Waterproof membrane to divert water away from tunnel crown

    14

  • Mechanical and Electrical Design

    Electrical Systems High voltage reticulation

    Low voltage reticulation

    Tunnel lighting

    Street lighting

    Emergency exit lighting

    Fire detection

    Control Systems Control room & video wall

    Plant management & control system

    Traffic management & control system

    Closed circuit television / Video incident detection

    Electronic signage

    Mechanical Systems

    Tunnel ventilation

    Drainage

    Mechanical ventilation & air conditioning

    Tunnel air monitoring include air dispersion

    Fire and life safety strategy

    Fire suppression and tunnel fire doors Lendlease Bouygues Joint Venture

    Communication systems

    Phones

    Public address

    Radio rebroadcast

    Mobile phone rebroadcast

  • Additional site investigation

    Geology

    16

  • Geology

    Competent geology / with localized features

    Largely in Hawkesbury sandstone with some Ashfield shale

    17

    Soil and extremely weathered

    rock

    Ashfield shale

    Mittagong

    Formation

    Hawkesbury

    sandstone

  • Permanent Lining - Cast in situ

    Typical Cross Section Shale only

    Volume Kicker = 1.6m3/m

    Volume Vault = 7.16m3/m

    Perimeter = 22.7m

    18

  • Permanent Lining Sprayed Shotcrete

    Typical Cross Section Hawkesbury Sandstone

    Volume Vault = 2.72m3/m

    Perimeter = 16.6m

    19

  • Tunnel Construction

  • Southern Portal and Ramps - Sequence of Excavation

    21

  • Typical Tunnel Sections

    22

  • Environmental Layout - Wilson Shaft

    23

  • Shaft depth

    Shaft Depth (collar to invert)

    Southern Interchange 12/30m

    Wilson Road 81.3m

    Trelawney 56.6m

    M1 Interchange 43.7m

    24

  • Excavation Sequence Wilson Shaft

    25

  • Typical Noise Shed arrangement / Conveyor

    26

  • Shaft access to tunnel

    Lendlease Bouygues Joint Venture

  • Shaft access to tunnel

    Lendlease Bouygues Joint Venture

  • Excavation Sequence Shafts

  • Excavation Sequence Tunnel Level

    30

  • Excavation Sequence Tunnel Level

    31

  • Excavation Sequence Tunnel Level

    32

  • Excavation Sequence Tunnel - Cut

    33

  • Different Excavation Activities in the tunnel

    34

  • Shotcrete Trials

    35

  • Plant (Shaft Jumbo)

    36

  • Tunnel Procurement - Plant

    (Roadheader Fabrication in Japan)

    37

  • Tunnel Procurement - Plant (Road header Fabrication in

    Austria)

    38

  • Tunnel Excavation

    Lendlease Bouygues Joint Venture

  • Tunnel Procurement - Plant (Shotcrete Machines)

    40

  • Tunnel Procurement - Plant (Mobile Agitator and Bolter)

    41

  • Ventilation Fan

    Ventilation: Forced Overlap system chosen with 35and 50 M3/s de-Dusters

    42

  • Program of Works

  • Tunnelling Basic scheme

    General sequence of excavation:

    1- RH excavation 1- XP Excavation 2- Benching 3- Lining / waterproofing

    (1 activity in the program)

    4- Drainage/Cable pit 5- Paving (no fine, asphalt, CRCP)

    excavation ducts install backfill

    Access to M&E Blue: Civil Activities7- Cable Pulling Red: M&E Activities

    7- M&E 1st Fix (cable trays, fans, cables)

    6- Traffic Barriers fundation 7- Cladding frame support 8- Install Traffic Barriers

    Access to M&E 11- Commissioning9- Infill Concrete 10- M&E 2nd Fix (cable termination) 11- Cladding installation

    11- Low noise diamond grind, pavement, line mark

    together

    Benching starts once excavation for full length of regular section is

    completed by Road header

    Enlarged section will be excavated once full length of regular section

    is completed by road header

    1- RH excavation 1- XP Excavation 2- Benching 3- Lining / waterproofing

    (1 activity in the program)

    4- Drainage/Cable pit 5- Paving (no fine, asphalt, CRCP)

    excavation ducts install backfill

    Access to M&E Blue: Civil Activities7- Cable Pulling Red: M&E Activities

    7- M&E 1st Fix (cable trays, fans, cables)

    6- Traffic Barriers fundation 7- Cladding frame support 8- Install Traffic Barriers

    Access to M&E 11- Commissioning9- Infill Concrete 10- M&E 2nd Fix (cable termination) 11- Cladding installation

    11- Low noise diamond grind, pavement, line mark

    together

    Benching starts once excavation for full length of regular section is

    completed by Road header

    Enlarged section will be excavated once full length of regular section

    is completed by road header

    M2 WILSON TRELAWNEY M1

    NB Entry Ramp (M1C0)M1C0N1 M1C0N2M2 ACCESS SHAFT FOR M110 & M120 S110N OUT M1C0N2 OUT T110N OUT T110N OUT

    NB (M110) S110N M1C0N2 W110S W110N T110S T110N N110S N110N

    M2W110S OUT T110S OUT N110S OUT

    M1S120N OUT M1C0N1 OUT W120N OUT T120N OUT

    SB (M120) M1D0N S120N M1C0N1 W120S W120N T120S T120N N120S N120NM1D0N OUT W120S OUT T120S OUT N120S OUT

    N110N NB EXIT RAMP (M1P0)

    SB Exit Ramp (M1D0) M1C0N1 M1D0NN110N OUT

    N12

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