软土三维各向异性弹粘塑性本构关系

3D Anisotropically Elasto-viscoplastic Constitutive Relationship of Soft Clay

结合真三轴试验所得到的破坏面在Л平面的形状，提出能够反映应力诱发各向异性的体积蠕变方程及弹粘塑性本构模型。

Considering the shape of the yield loci in the Л- plane obtained from the true triaxial shear test of Shanghaisoft clay, the authors present a new volumetric creep equation and elasto-viscoplastic constitutive relationship takingthe stress-induced anisotropy into account. Then the new model is verified by the triaxial tests.