THE SURFACE INSTALLATION METHOD

Problems of the installation of instrumentation and related cables and tubing in trenches excavated in an earthwork structure are evaluated. An alternative technique, the surface installation method, is described which makes use of standard equipment in simpler and quicker methods. The fill level in the area to be instrumented is allowed to rise to 200 mm higher than the planned elevation. A shallow swarth is then cut to a finished level 150 mm lower than that allocated for the instrument leads. Protection is provided by a ridge of loose material before compaction to a state similar to that in a trench installation method. It is claimed that the time taken for a trench-routed installation is approximately four times that of a surface-routed method installation. By adopting the surface method it should also be possible to reduce any disruption to routine construction activities to a level far lower than that possible with the trench installation method. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Clements, D J
  • Publication Date: 1982-2

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00368877
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jan 31 1983 12:00AM