One of the problems encountered when tunnelling in rock is that the ground water table is disturbed. Attempts to restore the natural ground water level have been made by infiltrating water through the top soil but this method does not always give the desired results due to silting up. Another method developed by Bergkonsult - sven tyren ab is based on the idea of infiltrating water through boreholes from the tunnel to the cracked top zones of the rock. Two infiltration projects are described. The one in Stockholm has been completely successful as already after two months' infiltration the previous ground water pressure was re-established. This infiltration has now been maintained for more than two years and no problems have arisen. A similar project has been carried out in Gothenburg where improvements in the ground water table are noticeable although recovery is still incomplete. In both cases the water leaking into the tunnel is used for reinfiltration. /TRRL/

  • Corporate Authors:

    AB Buggmastarens Forlag

    Sveavagan 17
    5tr Stockholm,   Sweden 
  • Authors:
    • Bergman, G
  • Publication Date: 1976


  • Swedish

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 14-16
  • Serial:
    • Byggmastaren
    • Volume: 55
    • Issue Number: 3
    • Publisher: AM Myggmastarens

Subject/Index Terms

Filing Info

  • Accession Number: 00139053
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Files: ITRD, TRIS
  • Created Date: Nov 17 1976 12:00AM