PACKING MATERIAL IN JACKED PIPE JOINTS. NO-DIG 89. DEVELOPMENTS UNDERGROUND. PROCEEDINGS OF THE 4TH INTERNATIONAL CONFERENCE ON TRENCHLESS CONSTRUCTION FOR UTILITIES, LONDON, APRIL 11-14, 1989

Laboratory research has been conducted at Oxford University during the past three years, investigating concrete pipe behaviour during installation by the jacking method. The work has investigated many aspects of the pipes' ability to be jacked and this paper highlights one aspect of that work, namely the use of packing materials in pipe joints. The laboratory exercise has been carried out using scale model pipes. It has investigated joint profiles and differences in their behaviour, and the advantages and disadvantages of using compressible packing materials in the joint. The effect of misalignment between consecutive pipes and how this influences their ability to transmit jacking load is presented. Different joint packing materials have been tested to establish their ability to distribute stress concentrations between misaligned pipes and pipes whose ends are not perfectly square to each other. A summary of allowable jacking loads on model pipes for various deflections is included. (Author/TRRL)

  • Availability:
  • Corporate Authors:

    International Society for Trenchless Technology

    15 John Street
    London,   England 
  • Authors:
    • MILLIGAN, GWE
    • Ripley, K J
  • Publication Date: 1989

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00497714
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-1567-4
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1990 12:00AM