DYWIDAG-SYSTEMS INTERNATIONAL
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DSI Austria  ›  Products  ›  Tunneling & Mining  ›  Pre-Support  ›  Spiles and Forepoling Boards
Spiles and Forepoling Boards
Spiles and Forepoling Boards

Spiles and Forepoling Boards

Spiles and forepoling boards are used as temporary pre-support system for the working area. They ensure the stability of the perimeter of the open span until the primary lining is installed.

Depending on the foundation soil characteristics, different spile types are used in order to achieve the best technical solution for each project. The products range from rebar spiles, IBO - Self-Drilling Spiles or the AT - TUBESPILEā„¢ to forepoling boards, which permit driving in non-cohesive ground.

Fields of Application

  • Tunnel driving in blocky and jointed rock mass
  • Tunnel driving in soft, homogenous foundation soil conditions

Main Advantages

  • Practice-proven spile system
  • Secure and simple installation
  • Universally applicable
  • Installation using conventional drilling machines
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