|
 |
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- |
|
Mechanised: |
TBM |
|
Road headers |
|
- |
|
- |
|
Segmental: |
Open faced |
|
Shield Driven |
|
Soft ground
and rock |
|
Compressed air |
|
- |
|
- |
|
Drill & Blast: |
Shafts |
|
Tunnels |
|
Chambers |
|
- |
|
- |
|
Pipe jacking: |
Man entry |
|
- |
|
- |
|
Timber headings: |
Box Headings |
|
- |
|
- |
|
Secondary Linings: |
Rib
‘n’ Laggings |
|
Smoothbore Steel shutter ( patented ) |
|
- |
|
- |
|
DWF Channels: |
Shutter ( patented ) |
|
Clay-ware and Precast |
|
- |
|
- |
|
Caulking and pointing: |
Development and promotion of caulking compounds |
|
Leak stopping |
|
Chemical Injection |
|
- |
|
- |
|
Sewers: |
Connection and refurbishment |
|
 |
|
- |
|
Caisson Construction: |
Dry |
|
Flooded including deepest in Europe |
|
External Concrete ‘Wraparound’ strength/anti-flotation
system |
|
Small diameter structural caisson manhole units <2.5m |
|
- |
|
- |
|
Underpinning: |
Drill ‘n‘ Blast |
|
Standard Techniques |
|
- |
|
- |
|
Concreting: |
Shaft |
|
Chamber |

We carry an extensive range of specialist
tunnelling
equipment including 2 LiebHerr 932 telescopic deep excavators (21m), tunnel
shields, cranes, eimcos, grouting equipment lining shutters.
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