Abstract
In order to investigate the shear strength and dynamic deformation characteristics of gravels, we carried out the torsional simple shear tests (TSS), triaxial compression tests (TC), cyclic torsional simple shear tests (CTSS) and cyclic triaxial tests (CTX).The results obtained can be summarized as follows.1) Shear strength in TSS and shear modulus in CTSS are larger than those in TC and CTX due to the influence of intermediate principal stress.2) Shear modulus and damping ratio are expressed as a function of shear strain, void ratio and confining pressure.3) Elastic moduli in monotonic loading test and those in cyclic loading test agree with each other in Toyoura sand and gravels.
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