Dynamic shear response of a geomembrane/geosynthetic clay liner interface

Jason D. Ross, Patrick J. Fox, James T. Olsta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations


A series of large-scale dynamic direct shear tests were performed to measure the interface shear strength between a textured geomembrane (GMX) and a needle-punched geosynthetic clay liner (NP GCL) under cyclic loading. The study was conducted for large ranges of shearing normal stress (σn,s= 13 to 2071 kPa) and cyclic displacement amplitude (Δa = 2 to 30 mm). The experimental data indicate that the failure mode of a GMX/NP GCL specimen depends on both σn,s and Δa. All tests conducted at low to moderate normal stress levels (σn,s ≤ 692 kPa) produced interface failures. Partial to complete internal failures were observed for some tests at low Δa and high σn,s. Interface failures still occurred for the largest displacement amplitude (Δa = 30 mm) at all normal stress levels. In general, the testing program has indicated a more complex interrelationship among failure mode, normal stress level and shear displacement rate than has been previously considered for these materials.

Original languageEnglish (US)
Title of host publicationGeo-Frontiers 2011
Subtitle of host publicationAdvances in Geotechnical Engineering - Proceedings of the Geo-Frontiers 2011 Conference
Number of pages11
Edition211 GSP
StatePublished - 2011
EventGeo-Frontiers 2011: Advances in Geotechnical Engineering - Dallas, TX, United States
Duration: Mar 13 2011Mar 16 2011

Publication series

NameGeotechnical Special Publication
Number211 GSP
ISSN (Print)0895-0563


OtherGeo-Frontiers 2011: Advances in Geotechnical Engineering
Country/TerritoryUnited States
CityDallas, TX

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction
  • Geotechnical Engineering and Engineering Geology


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