Geosynthetic clay liners - slope stability field study

Conference · Wed Dec 31 04:00:00 EST 1997

OSTI ID:576559

Carson, D A ^[1]; Daniel, D E ^[2]; Koerner, R M ^[3]; Bonaparte, R ^[4]

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1. Environmental Protection Agency, Cincinnati, OH (United States)
2. Univ. of Illinois, Urbana, IL (United States)
3. Geosynthetic Research Institute, Philadelphia, PA (United States)
4. GeoSyntec Consultants, Atlanta, GA (United States)

A field research project was developed to examine the internal shear performance of geosynthetic clay liners (GCLs). Several combinations of cross sections were assembled using GCL materials that were available at the time of project initiation. The cross sections utilized were intended to simulate landfill cover applications. Thirteen (13) resulting test plots were constructed on two different slope angles, and each plot is instrumented for physical displacement and soil moisture characteristics. Test plots were constructed in a manner that dictated the shear plane in the clay portion of the GCL product. The project purpose is to assess field performance and to verify design parameters associated with the application of GCLs in waste containment applications. Interim research data shows that test slopes on 2H:1V show global deformation, but little internal shear evidence, and the 3H:1V slopes show little deformation at approximately 650 days. The research is ongoing, and this paper presents the most recent information available from the project.

• Research Organization: USDOE, Washington, DC (United States)
• OSTI ID: 576559
• Report Number(s): CONF-970208--Proc.; ON: DE98001967
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
54 ENVIRONMENTAL SCIENCES
CLAYS
CONTAINMENT SYSTEMS
DEFORMATION
LINERS
MOISTURE
PERFORMANCE
POLLUTION CONTROL
SHEAR
SLOPE STABILITY
SOILS
SYNTHETIC MATERIALS