Design of a landfill final cover system

T. D. Stark, E. J. Newman

Research output: Contribution to journalArticlepeer-review

Abstract

This paper describes a final cover slope failure at a municipal solid waste containment facility. The lessons learned from this case history include: (i) slope stability analyses should be conducted whenever field conditions differ from initial design assumptions, such as a steeper slope and different geosynthetics; (ii) published values of interface strength/friction angle should not be used for final design, instead site-specific interface testing should be used; (iii) final cover slope angle should not exceed the lowest geosynthetic interface strength in the cover system to prevent tension in the geosynthetics and/or progressive slope failure of the slope; and (v) designers should resist the temptation to utilise a pre-existing final cover design without performing the necessary field reconnaissance, interface testing, analysis, and design for the new site.

Original languageEnglish (US)
Pages (from-to)124-131
Number of pages8
JournalGeosynthetics International
Volume17
Issue number3
DOIs
StatePublished - Jun 2010

Keywords

  • Failure
  • Final cover system
  • Geosynthetic-lined slopes
  • Geosynthetics
  • Interface shear strength
  • Landfill
  • Shearbox test
  • Stability
  • Strength
  • Waste containment

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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