GROUND SUBSIDENCE ASSOCIATED WITH MACHINE TUNNELLING IN FLUVIO-DELTAIC SEDIMENTS - PARTS 1 & 2

The authors describe the design and construction of a sewer tunnel of 100 in diameter cross-section driver through fluvio-deltaic sediments at Thunder Bay, Ontario, Canada. Part 1 evaluates ground water responses to full-face tunnelling and describes monitoring programmes set up after ground settlement had occurred to evaluate effectiveness of tunnelling methods used. Part 2 presents surface settlement data gathered during the various monitoring programmes. Observations of ground subsidence created by tunnelling in the soft soils encountered show that despite careful construction procedures large ground movements can occur unless compressed air is used. (TRRL)

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Authors:
    • Morton, J D
    • Dodds, R B
  • Publication Date: 1979-1-11

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 13
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00308900
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Apr 22 1980 12:00AM