Investigation of liquefaction behaviour for cohesive soils

Abstract

The most frequently problem in the deformation of soils under dynamic effects is liquefaction. Detailed investigation on the liquefaction is required to take precautions against deformations caused by earthquakes. A good knowledge of the soil properties is necessary for the prediction of the liquefaction potential. However, it is thought that the liquefaction is limited with only sandy soils, recent studies have found susceptibility to liquefaction in silts, clays and gravels. Studies on the liquefaction criteria for cohesive soils have been continued. In this study, cohesive soils were tested by using laboratory scale shaking table to investigate liquefaction potential. Firstly, soil samples were taken from the city of Eskisehir, Turkey. In the results of the study; parameters on the liquefaction behaviour for cohesive soils were discussed. Cohesive soils with high clay amount do not let excessive pore water pressure, therefore liquefaction is not occurred but settlement and softening can be seen with dynamic loading