The article discusses tunnelling research carried out in the UK during 1977 by the Transport and Road Research Laboratory. The work is described in the following sections: ground vibrations caused by tunnelling - vibrations and settlement, were measured during the first commercial application of the British bentonite tunnelling process at Warrington, Cheshire; studies of tunnelling systems - systems were studied to identify critical operations during construction, to determine rock boring properties, and to evaluate machine performance in rock types; horizontal drilling trials - trials were carried out on horizontal drilling to develop a system for probing ahead of tunnel excavation; dynamometers for disc cutters - dynamometers have been developed where force-sensing members are obtained by machining the cutting disc housing; traffic in tunnels - to determine the compatibility of urban traffic flow in tunnels with traffic networks, tests were carried out at nine road tunnels. Comparisons were made with rural and suburban main road traffic flows. /TRRL/

  • Availability:
  • Corporate Authors:

    Morgan-Grampian Limited

    30 Calderwood Street
    London SE18 6QH,   England 
  • Publication Date: 1978-11

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 33-35
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00194418
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Jul 11 1979 12:00AM