World-class solutions beneath the surface

Tunneling plays a vital role in enhancing connectivity, minimizing environmental impact, liberating space and are a strategic solution for various engineering challenges. These mega underground projects significantly contribute to infrastructure that enables economic growth, environmental sustainability and societal well-being.

Our tunnel experts are internationally recognized for designing and delivering transit, roadway, water and energy tunnel projects. With the latest technologies, we provide a full range of tunneling and underground structure design and management services partnering with both public and private sector clients.

Tunneling and underground expertise:

  • Cut-and-cover tunnels and stations
  • Tunnel boring machine (TBM) tunnels
  • Conventional tunnels (Drill and Blast and NATM / SCL / SEM)
  • Immersed tube tunnels
  • Trenchless technology
  • Shafts and deep excavation
  • Raiseboring
  • Ground improvement
  • Tunnel MEP and systems
  • Tunnel fire-life safety

Specialized services

  • Feasibility study
  • Economic/financial analysis
  • Planning and environmental study
  • Conceptual and detailed design
  • Geological and hydrogeological study
  • Program and construction management
  • Tunnel risk management
  • Technical advisory
  • Asset management, inspection and rehabilitation