Water & infrastructures

Hydraulic structures

> Dams

> Appurtenant structures

Hydraulic schemes and HEPP
improvement and rehabilitation

Water resources management

Risk analysis

Underground works

Urban hydraulics and
water transfers

Economic analysis

Underground works
     
  • Tunnels and galleries
  • Underground power plants and appurtenant structures
  • Shafts and water tunnels
  
         

Cleuson-Dixence, penstock and headrace tunnel, 7700 m long, Switzerland, 1991-96
  
Loetschberg Sud base tunnels, 2 X 17,6 km, Switzerland, 1994-05		  
South West Lausanne Tramway (TSOL), 230 m long cut and cover, Switzerland, 1988-91
         

Tridel tunnel, Lausanne, Switzerland, 2003-05
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Lavey HPP intake tunnel, 3800 m long, 7,75 m diameter, Switzerland, 1989-91		  
La Raisse railway tunnel, Switzerland, 2000
         

Deriner underground complex, 670 MW, Turkey, 1997-05.
February 2002: cavern for the powerhouse, state at mid-excavation		  

Ceva
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CEVA shallow urban railway tunnel : Sous le plateau de Champel – Tracés n° 3, 18 février 2009
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Rhône tunnel between Finges and Chippis, 5 km headrace tunnel, Switzerland, 1985-98
         

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