Base sliding and dynamic response of landfills

Varvara Zania, Prodromos N. Psarropoulos, Yiannis Tsompanakis

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

A very important issue in the seismic design of waste landfills is the role of the base liner, which is placed at the foundation of a landfill prior to waste disposal in order to isolate waste material and leachate from the environment. Consequently, a low shear strength interface is introduced in the system, providing thus the potential for the development of relative displacements due to ground shaking. The current study aims to provide an insight into the dynamic response of a typical above-ground landfill with a predefined slip surface along the geosynthetic layer of its base. For this purpose, two-dimensional dynamic finite-element analyses are conducted in order to investigate the impact of the most significant parameters involved, such as the characteristics of the excitation, the material properties, and the shear strength of the interface. Furthermore, the capability of simplified procedures to simulate the complicated nature of the dynamic interaction of slip displacement development and the dynamic response is also examined.
Keyword: Seismic stability,Permanent deformations,Geosynthetic interface,Base sliding,Waste landfills
Original languageEnglish
JournalAdvances in Engineering Software
Volume41
Issue number2
Pages (from-to)349-358
ISSN0965-9978
DOIs
Publication statusPublished - 2010
Externally publishedYes

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