Tunneling
Shannon & Wilson develops innovative tunneling solutions to fit specific, challenging, site conditions. Our excellent reputation in tunnel design was earned on projects including the world’s largest diameter soft-ground tunnel; the world’s first and only vertical, continuously spiral-lined shaft; the largest deep-transit station in soils in the United States; and instrumentation for major tunnel installations. Our staff is experienced in designing and managing construction for tunnels that involve a wide range of excavation techniques, including drill and blast, roadheader, tunnel-boring machine, earth-pressure-balance machine, slurry machine, sequential excavation method, micro-tunneling, pipe-jacking, and directional drilling. Our tunneling services include:
- Subsurface exploration and route selection
- Design recommendations ― soil and rock
- Tunnel and liner method selection
- Ground improvement
- Dewatering
- Plans, specifications, and engineering construction estimates
- Construction monitoring
- Tunnel condition assessment and rehabilitation recommendations
