undrained shear

Because of the stress induced anisotropy caused by the initial anisotropic stress state, the undrained shear strength usually displays anisotropic nature.

初始不等向固结状态可引起应力诱发各向异性，因而K0固结粘土的不排水剪强度通常表现为各向异性。

it was found that the undrained shear behavior of loose sands was considerably dependent on the orientation of the principal stress.

研究表明，主应力方向对在不排水条件下饱和松砂的单调剪切特性具有显著影响。

new soil classification chart and undrained shear strength (cu) based on cptu are developed in this paper.

提出了新的土分类图及不排水抗剪强度的估算公式；

besides, the undrained shear strength was increased slightly due to the negative pore pressure.

不排水条件下由于负孔隙水压力的存在，土样的表观强度略有增大。

maintaining to be constant, the maximum bending moment of the pile increases linearly with increase of the undrained shear strength .

在不变的情况下，桩身弯矩随着增加呈线性增长。