繰り返しせん断における粘土の力学特性

Abstract

Triaxial repetitious compression tests were performed on saturated remoulded clayspecimens under the undrain condition and changes in some mechanical properties dueto repetitious loading were investigated.Furthermore, the influence of stress history on the shear strength was discussed.Principal conclusions obtained from these tests are as follows;(1) It may be supposed that, if clay specimens, whose water contents are equal butwhose consolidation histories are different, are remoulded by applying repetitious loads, the effective stresses in the specimens thus remoulded are almost equal.(2) The shear strength and the strain which appear in the specimen at failurebecome almost constant due to the repetitious loading irrespective of its history whetherit is normally consolidated or overconsolidated.