Seismic design of solid waste landfills requires special consideration, since a potential failure may be related to undesirable environmental consequences. As a result intense research interest has been recently observed on dynamic response and stability issues of landfills. Nevertheless, there are still important aspects that have not been yet resolved. Geosynthetic liners, constructed to successfully isolate waste material from the environment, are undoubtedly one of the most important seismic design parts. This study aims to highlight the contributing role of the base liner on the seismic behaviour of landfills. As landfills are characterized by several uncertainties related mainly to waste material characterization, the current investigation takes also into consideration the significant parameters addressed in the literature affecting the dynamic response. For this purpose two-dimensional efficient dynamic finite-element analyses are performed. The tension of the geosynthetics resulting from the seismic loading is estimated along with the potentially induced seismic slip deformations taking place on the interfaces. Results indicate that the seismic strains on the geosynthetics should not be neglected. Seismic design of landfills should take into account these phenomena and ensure the integrity of the lining systems as well as the stability of the impoundment.
|Publication status||Published - 2008|
|Event||4th European Geosynthetics Conference - |
Duration: 1 Jan 2008 → …
|Conference||4th European Geosynthetics Conference|
|Period||01/01/2008 → …|