The thrusting of precast concrete tunnel boxes beneath the three-level flyover approaches at brent cross is reported and claimed to be the largest thrust in the UK to date. The need for thrust boring was found to be essential, in order to meet the condition that access to the shopping centre should not interfere with the heavy traffic flow at the existing interchange. Details of the excavations required, materials used and methods employed in construction are given, together with diagrams and photographs, and the overcoming of the problem of pockets of soft material located in the line of thrust is described. The work was coordinated by Cementation Projects Ltd., and the other companies that were involved are listed. /TRRL/

  • Corporate Authors:

    IPC Building and Contract Journals Limited

    Surrey House, 1 Throwley Way
    Sutton, Surrey SM1 4QQ,   England 
  • Publication Date: 1975-1

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00097336
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1975 12:00AM