THE SLOPE STABILITY OF GEOMEMBRANES IN LANDFILL FACILITIES

In the last five years the use of geomembranes in landfill facilities has grown substantially, for both lining systems and capping layers. Polymeric geomembranes provide a viable alternative to a low permeability mineral in capping layers for excluding water from the waste or inhibiting the migration of leachate and landfill gas into the surrounding environment. Where an indigenous low permeability clay is unavailable or a suitable source is economically too far to import to site then a geomembrane often proves a financially attractive option. Introducing a geomembrane into a permanent earthworks construction induces a potential line of weakness along which slope failure poses a significant risk. The geomembrane is, in effect, a smooth planar surface spread over a large area and is tantamount to a pre-existing shear plane in a soil mass. The purpose of this paper is to briefly outline the stability effects on several elements of a landfill by installing a geomembrane as part of low permeability containment system.Particular concern is raised over the use of the interface shear strength between the geomembrane and the adjacent materials. (A) For the covering abstract see IRRD 898792.

  • Availability:
  • Corporate Authors:

    Thomas Telford Limited

    London,   United Kingdom 
  • Authors:
    • LITTLEMORE, D S
    • ROGERS, K S
  • Publication Date: 1997

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00752954
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-2606-4
  • Files: ITRD
  • Created Date: Sep 28 1998 12:00AM