科研之友
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摘要
The deformation behavior and shear strength of soft marine clays subjected to wave or traffic loads are different from that in triaxial loading due to the changes of major principal stress direction beta and intermediate principal stress coefficient b. To investigate the anisotropy affected by beta and b in natural soft marine clay, a series of drained tests were conducted by hollow cylinder apparatus. The principal stress direction relative to vertical direction were maintained constant under an increasing shear stress, with fixed intermediate principal stress coefficient b. The influence of the b and beta on anisotropy of typically Wenzhou intact clay is discussed. It was found that octahedral stress-strain relationships expressed anisotropy with different b and beta. The friction angle and deviator stress ratio with different b and beta were presented to provide guidance for engineering projects in the coastal zone.
