International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
Vol. 6, No. 2, 2009, pp. 299-308
Bioline Code: st09033
Full paper language: English
Document type: Research Article
Document available free of charge
International Journal of Environment Science and Technology, Vol. 6, No. 2, 2009, pp. 299-308
© © 2009 IRSEN, CEERS, IAU
Liquefaction susceptibility mapping using geotechnical laboratory tests|
El May, M.; Kacem, J. & Dlala, M.
The soil liquefaction potential has been evaluated for the Ariana Region because of its important socio-economic interest and its location. Liquefaction susceptibility mapping is carried out using a decisional flow chart for evaluation of earthquake-induced effects, based on available data such as paleoliquefaction, geological, groundwater depth, seismotectonic, sedimentary features and geotechnical parameters in particular laboratory testing like grain size analyses and state parameters. Survey results showed that some of these localities are considered as possible sites to soil liquefaction. Indeed, Quaternary alluvium deposits, paleo beaches and recent deposits that edge the lake and the sebka constitute the most susceptible locations to liquefaction. In the east and the west sides of the studied zone, Quaternary deposits are less susceptible to the liquefaction due to the groundwater level deepening and to the relatively old age of the deposits. Elsewhere sedimentary formations are classified as non-liquefiable as they are heavily compacted and old.
Soil liquefaction, site effects, regional seismic hazard, local seismic hazard
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