Abstract：Spatially mobilized plane(SMP) criterion is one of the most famous failure criteria in the field of soil mechanics when describing characteristics of soil under the three-dimensional stress condition，while Qinghua model is one of the most famous domestic constitutive models. It′s aimed to combine SMP and Qinghua model using a transformed stress tensor based on the SMP criterion. Thus the Qinghua constitutive model whose failure and yield criterion is SMP instead of Mises yield criterion. Using this method，it can be computed without even increasing original model′s parameters. And this method realizes the consistency from the shear yield to the shear failure with the SMP criterion. The revised Qinghua model is able to describe the behavior of soils in general stress condition including triaxial compression.
