Segmental Tunnel Lining
- Rock Boring & Tunneling
- Segmental Tunnel Lining
- Hand Mining
- Auger Boring
- Horizontal Directional Drilling
- Open Cut Excavation
- Pipe Jacking/ Conventional Tunneling
- Sliplining (reline)
- Pipe Ramming
- Pipe Bursting
- Guided Boring
- Box Tunneling
- Shaft Excavation
- Cellular Grouting
- Spiral Wound Lining
- CCTV Pipe Inspection
- Heavy Haul – MWM Transport
Simple Tunnel Construction
Segmental tunnel lining is an efficient way to create a stable tunnel following a tunnel boring machine or hand mining operation.
As the TBM or hand mine shield advances the tunnel, crews erect either steel ring beams or wood lagging to support the tunnel. Once tunneling is complete, crews thread the carrier pipe through the tunnel lining and inject grout in between.
The tunnel lining creates a safe tunnel throughout the entire duration of the tunneling process until the final pipe is installed.
Benefits of Segmental Tunnel Lining:
- Great for longer distances since there’s no friction
- An ideal method for larger diameter tunnels
- Can accommodate slight bends
- Safe, fast method with low operating costs
Fishers Drainage Tunnel
When INDOT decided to eliminate traffic signals along State Road 37 in favor of roundabouts, it meant lowering the road up to 10-12’ in some places. With such a dramatic change, the project called for drainage improvements, including a large diameter 2000’ tunnel to carry water from the new road to Shoemaker ditch.
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