SYDNEY HARBOUR TUNNEL PROJECT - CONSTRUCTION TO DATE. SEVENTH AUSTRALIAN TUNNELLING CONFERENCE; THE UNDERGROUND DOMAIN, SYDNEY, 11-13 SEPTEMBER 1990; PREPRINTS OF PAPERS

Construction of the Sydney Harbour Tunnel project has progressed successfully over the past two and a half years. Just over two years remains to complete the work ready for opening on the 31 August, 1992. Land tunnel work for the project has proceeded steadily, with excellent characteristics of the Hawkesbury sandstone contributing to relatively incident-free tunnelling. The normal technical problems of underground construction in major coastal cities of the world, that is, poor, soft ground and adverse groundwater conditions, have not been encountered. Both roadheader and drill and blast methods of excavation have been successfully employed, despite the hard, abrasive rock conditions and the strict limitations on vibration and airblast overpressure, demonstrating the fact that the geologic environment of the Sydney Basin is ideal for underground development. (TRRL)

  • Availability:
  • Corporate Authors:

    Institution of Engineers

    11 National Circuit
    Barton, A.C.T.,   Australia 
  • Authors:
    • Lukins, P J
  • Publication Date: 1990-7

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Filing Info

  • Accession Number: 00620310
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-85825-504-9
  • Files: ITRD, TRIS
  • Created Date: Mar 31 1992 12:00AM