CRYOGENIC TREATMENT OF SHAFTS AND TUNNELS

One of the geotechnical processes able to contend with unstable or saturated soil conditions in civil or mining engineering, is that of soil-freezing. In this technique, a temporary conversion of the interstitial soil moisture forms a strong and impermeable frozen soil membrane around the excavation zone. With the development of cryogenic techniques, nitrogen is available in liquid form offering a rapid means of soil freezing. Typical applications of the technique include shaft deepening tunnel faces, sealing gaps in cofferdams and wherever temporary structural support is needed. Two examples are given of the use of soil freezing on a sewer tunnelling project in Edinburgh. /TRRL/

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Harris, G P
  • Publication Date: 1974-9

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Filing Info

  • Accession Number: 00125099
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Nov 18 1975 12:00AM