Experimental Study on Parameters of the HSS Model for Taizhou Soft Clay
The Hardening Soil Small strain(HSS)model,which can consider the nonlinear performances of soil in the small strain range,has been widely used in the numerical analysis of geotechnical engineer-ing.The HSS model parameters for Taizhou soft clay were elaborately calibrated by series of triaxial shear tests,resonant column tests,and standard consolidation tests.The proportional relations of parameters for soils derived from different layers were established,which was then compared with those of soft soil in other typical areas of China,and the rationality of the relations was verified.The empirical relations between the related perameters and initial void ratios of soil were determined further.The findings could be used to cal-culate the deformation caused by excavation in soft clay strata.The method could also provide reference to determining parameters of soil for the HSS model in other areas.
soft clayHSS modelparameter calibrationtriaxial testresonant column test