TUNNEL REHABILITATION AND MODIFICATION SERVICES
Update tunnels to maintain high safety standards.
What Is Tunnel Rehabilitation and Modification and Why Is It Important?
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Benefits of Rehabilitating a Tunnel
- Save money by addressing tunnel problems while they’re in the early stages.
- Reduce the need for maintenance.
- Decrease the chance of loose material entering the tunnel.
Rehabilitation and Modification Process
We perform tunnel rehabilitation and modification services to repair deteriorated sections of a tunnel. First, we’ll perform an initial tunnel review and assessment to determine if the deterioration would cause damage to a structure or passing freight. Then, we’ll choose the best rehabilitation or modification service based on the tunnel.
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NOTICING PROBLEMS WITH A TUNNEL?
HOW WE CAN HELP YOU
Types of Tunnel Repair Services
There are various tunnel repair services, including timber set removal, steel set installation, shotcrete, grouting, rock bolting, and scaling.
Timber Set Removal
Timber sets are removed from tunnels in preparation for shotcrete to be applied to the tunnel lining. The wood is removed because of the potential fire hazard it poses inside the tunnel.
Steel Set Installation
Steel sets are used for ground support when conditions deteriorate. Installation of steel sets may involve lagging and backfill, depending on ground conditions.
Our shotcrete undergoes placement and compaction at the same time due to the force with which it is projected from the nozzle. It can be impacted on any type or shape of surface, including vertical or overhead areas.
Grout is a thin cement mixture that’s used to fill space and voids behind and around structures. This material can act in a structural capacity to stabilize, strengthen, and support a structure.
Rock bolts are used to tie unstable or potentially unstable rock structures into the tunnel. We specialize in this service and are pleased to offer you the support you need.
We’ll remove loose rocks from slopes to prevent them from hurting persons or property should they fall. This can promote better safety conditions for all.
Some older tunnels are too small to allow passage of current freight trains, and these tunnels need to be enlarged. Methods of tunnel enlargement include notching, liner removal and installation of larger steel sets, and/or installation of rock bolts and shotcrete.
Drill and Blast
For certain projects, ground conditions require the use of explosives. That is when conventional, mechanical means are not enough.
REASONS TO CALL OUR TEAM
At LRL Construction, we are experts in tunnels. With our knowledge and years of experience dealing with all types of tunnel rehabilitation, you can trust that you made a good choice when you choose us. We’re reliable, responsive, and dedicated to completing your project at a fast and safe timeline.