Dynamic Response Analysis Procedure for Landfills with Geosynthetic Liners
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 124, Issue 10
Abstract
The dynamic response of geosynthetic interfaces commonly encountered in municipal solid waste landfills were investigated using a shaking table facility. The force-slip relationships for the tested interfaces showed almost rigid and then plastic deformation where the maximum shear force transmitted through the interface increases slightly with increasing slip. The force-slip relationships were modeled with equivalent stiffness and damping ratios. These equivalent parameters were established as a function of slip displacements to account for the nonlinear behavior of the interfaces. Using the equivalent stiffness and damping, the dynamic properties of an equivalent soil layer were established such that the dynamic response of the equivalent soil layer is similar to that of the geosynthetic interface it represents. The purpose of this representation was to allow the modeling of geosynthetic interfaces in wave propagation analysis, such as SHAKE analysis. The properties of the equivalent soil layer were validated by comparing the measured dynamic response of a rigid block placed on geosynthetics with that computed using the SHAKE program and the properties of the equivalent soil layer developed. A procedure for analysis of the dynamic response of landfills with geosynthetic liners is proposed.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 124 • Issue 10 • October 1998
Pages: 1027 - 1033
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Oct 1, 1998
Published in print: Oct 1998
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