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structural engineering canal rehabilitation ground engineering hydro engineering tunnelling  
 
 

TUNNELLING

consolidation of granular soil<br/> during pipe driving works forward consolidation of fissured rock
Tunnelling demands high requirements on people, material and technology since the geology can change with each metre of excavation. The most feared surprises are fault zones and water ingress. Fissured rock in excavated tunnel parts containing the risk of collapsing could be quickly consolidated for example with SPESAN VS SPESAN B. Water ingress can be stopped by using the product SPESAN WN SPESAN B.