This paper outlines the primary causes of short-term and long-term ground displacements caused by trenching and pipe-bursting, and briefly presents methods of ground movement prediction for individual practical cases, which are also described. The effects and cost implications of significant ground displacements are also discussed. The traditional way to replace a pipeline is to excavate a trench, temporarily support the trench's sides if necessary, remove the existing pipe, and lay a new one. The alternative method is to use pipebursting, which involves fewer construction operations, is much quicker and more efficient, is often significantly cheaper, and causes less traffic disruption. In any comparison of techniques, the relative effects on any overlying road structure and adjacent or crossing buried services should also be considered. Subsurface ground displacements due to pipebursting tend to be localised, and dissipate rapidly away from the bursting operation. With time and surface trafficking, the original equilibrium tends to be restored, reducing any displacements induced in adjacent services or structures. In contrast, trenches create discontinuities in an overlying road structure and reduce road life. Pipebursting is much less likely to cause damage, and such damage can be prevented by sensible measures.

  • Availability:
  • Corporate Authors:

    Mining Journal Limited

    60 Worship Street
    London EC2A 2HD,   England 
  • Authors:
  • Publication Date: 1996-2


  • English

Media Info

  • Features: References;
  • Pagination: p. 16-7,20
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00724266
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Aug 19 1996 12:00AM