Long-term behavior of water content and density in an earthen liner

Timothy E. Frank, Ivan G. Krapac, Timothy D. Stark, Geoffrey D. Strack

Research output: Contribution to journalArticlepeer-review

Abstract

An extensively instrumented compacted earthen liner was constructed at the Illinois State Geological Survey facility in Champaign, III. in 1987. A pond of water 0.31 m deep was maintained on top of the 7.3 m × 14.6 m × 0.9 m thick liner for 14 years. One of the goals of the project was to evaluate the long-term performance of a compacted earthen liner by monitoring the long-term changes in water content and density. The water content of the earthen liner showed no trend with depth or time. The liner density remained essentially constant from construction through excavation in 2002. The liner did not become fully saturated. Upon excavation of the liner, the degree of saturation was 80.0±6.3% after 14 years of ponding under a hydraulic head of 0.31 m. The results imply that properly designed and constructed earthen liners may reduce the possibility of pollutants leaching from municipal solid waste containment facilities by remaining partially saturated for years and maintaining the placement density. Journal of Geotechnical and Geoenvironmental Engineering

Original languageEnglish (US)
Pages (from-to)800-803
Number of pages4
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume131
Issue number6
DOIs
StatePublished - Jun 2005

Keywords

  • Hydrologic properties
  • Illinois
  • Liners
  • Water content

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Environmental Science(all)

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