101 Study on Calculation and Distribution Model of Landslide Thrust Available to Purchase

Landslide thrust was calculated by limit equilibrium method and its distribution is discussed with strength reduction FEM in this paper. The equivalence has been validated on two kinds of different water pressure calculation, “Code Method” and “Pan Jia-zheng Method” of limit equilibrium methods, at the same time the reason of the error of “Simplified Pan Jia-zheng Method” is presented. A case of project of Three Gorges Reservoir Area shows that the distribution forms of landslide thrust on support structures are trapeziums by strength reduction FEM, and they would vary with the change of the shear strength parameters of sliding mass. When friction coefficient of sliding mass is increased with increasing of the contents of broken stone, the distribution form of landslide thrust would be changed from trapeziform to parabola. When cohesion of sliding mass is increased with increasing of the content of clayey soil, the distribution form of landslide thrust would be changed from trapeziform to triangular. The Landslide thrust would decrease and its barycenter would be down when friction coefficient and cohesion of sliding mass increase.