Sydney Metro West Syd Airport Project Tour

Introduction

• Speaker: Roberto, Tunnel Manager for Southern Tunnels
• Project: Sydney Metro West Syd Airport
• Purpose: Introduce the world of tunnel boring machines and their role in new metro tunnels construction

Overview of Metro Line Construction

• Contractor: CPB Contractors Ghella
• Scope: Excavation of five station boxes, two service shafts, and two TBM tunnels
• Route: From St. Marys to Aerotropolis
• Safety Measures:
  • Daily site inductions
  • Review of safety documents
  • Daily site work and observations
  • Equipment checks

Infrastructure and Operations

• Speaker: Matthew, Engineer at Airport Business Park
• Segment Yard:
  • Location where tunnel segments are stored
  • Segments produced in Brisbane, shipped to site
  • Stored until installation in tunnels
• Segment Installation:
  • Transported from segment yard to gantry crane area
  • Lifted into airport dive for tunnel boring

Construction Details

• Airport Dive:
  • Transition from surface to underground
  • Excavation: 192,000 tons of rock (equivalent to 30 Olympic swimming pools)
  • Structure dimensions: 12m deep, 300m long, 25m wide
  • 12,000 tons of concrete used
• Services:
  • Supply to tunnel boring machines: water, grout, sodium silicate
  • Includes conveyor and ventilation systems
• Tunnel Transport Vehicle (TSP):
  • Delivers segments to TBM
• Cross Passages:
  • Located every 240m between two tunnels

Tunnel Boring Machines (TBM)

• TBM Ile:
  • First TBM launched at the Airport Business Park site
• TBM Peggy:
  • Second TBM to launch for the project

Tunnel Conveyor System

• Static Conveyor:
  • Part of tunnel conveyor system
  • Transports excavated material to the surface

Conclusion

• Tour Objective: Provide insight into tunnel construction
• Encouragement to explore the tunnel world