Subsurface Construction
   Processes and Products
Pikto Subsurface Construction
The protection of structures against settlements from tunnel and mining activities is an important application of the Soilfrac® - process.
This technique was used for the first time by Keller for a subway project in the Ruhr area of Germany in 1985.
   
 
   
Tunnel Construction
Shafts
  • Soilcrete shafts
  • Sealing injections
  • Starting blocks
  • Sealing slabs
  • Freezing tunnelling
  • Pipe umbrella roofs
  • Soilcrete-vaults
  • Roof grouting
  • Ground water disposal
  • Soilfrac - compensation grouting
  • by driven pipes
  • by horizonal Soilcrete elements
Sewer construction
Jacking pits
Ground water lowering
Dewatering

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