Hammer & Pipe Ramming

A pneumatic ramming tool drives the casing forward without removal of spoils.  Spoils are removed by various methods, dependent on soil types, after the casing is in place.

ADVANTAGES

  • Well suited for cobbles and running sands
  • Lowest probability of surface subsidence

CONSIDERATIONS

  • Line and grade accuracy (unless utilizing GBM in conjunction)
  • Casing thickness
  • Drive length limited by soil conditions


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