Soil Liquefaction Susceptibility in Coastal Region of Andhra Pradesh
摘要
In this study loose particles of the soil get disturbed and lose shear strength resulting in the soil behaving as a viscous liquid rather than solid. The study given below is to evaluate the potentiality of liquefaction in the coastal region of AP. The selected study area falls under zone-3 in India which is of moderate seismic risk and the regional area has multiple layers of sand, silty sands, clay mixed with organic matter. As a part of the study, 217 bore-holes were drilled and SPT was performed on the samples for identification of geotechnical properties and also to determine liquefaction susceptibility. A simplified approach method by seed and Idriss has been used to determine the liquefaction susceptibility. The LPI values were obtained from Iwasaki et.al. The spatial analyses results of liquefaction potential were mapped by using QGIS. The QGIS maps could be effectively used by geotechnical engineers and researchers for further land development and urbanization.