Tunnels
An opening in a tunnel lining
- Cables
- Drainage
- Section of lining to remove
- Must go
- A section of lining or rock, for a new niche or opening.
- Must stay
- Cables, drainage and the lining around it.
- Access
- From inside the tunnel.
Applications
One method. Hundreds of jobs.
Wherever a piece of rock or concrete has to go and everything around it must stay, the job is the same. We start in tunnels and hydropower.
Where we start
Two typical jobs, first.
Hydropower
Room for new equipment at a hydropower site
- Water channel
- Equipment
- Section of wall to remove
- Must go
- A section of concrete, to fit replacement equipment.
- Must stay
- Water channels, machinery and the structure around it.
- Access
- Tight spaces, within a planned shutdown.
Illustrations of typical jobs.
Where it goes next
The same job shows up everywhere.
Not tested yet. We start where the need is sharpest.
Buildings
New openings and shafts in buildings in use.
Foundations
Trim or remove a foundation next to what stays.
Retaining walls
Openings and changes in walls that hold back ground.
Bridges
Concrete in structures that stay in service.
Utility crossings
Close to pipes and cables that stay in service.
Concrete rehabilitation
Remove a damaged section and keep the rest.
Industrial plants
Changes inside plants that keep running.
Shafts
Preparing or altering shafts from one side.
Why it fits all of them
Why the same method fits all of them.
One side access
The whole system works from the side you can reach.
Cut only what must go
A narrow slot around the piece, not breaking around it.
Everything around stays
Cables, pipes, water and structure are left in place.
Is there a job like this on your site?
Useful to include: what must go, what is around it, when the work can happen, and where a rig and pump could stand.