滑坡深部位移的物理力学参数敏感性分析

Sensitivity Analysis of Physical and Mechanical Parameters on Deep Displacement of Landslide

应用地学软件Geo-studio中的渗流模块和应力应变模块,基于正交设计原理来研究滑坡变形的参数敏感性。结果表明,渗透系数、饱和体积含水量、容重、粘聚力、内摩擦角、弹性模量和泊松比这七个因素中,滑坡深部位移最为敏感性的三个因素依次为内摩擦角、容重和渗透系数,弹性模量、饱和体积含水量与粘聚力敏感性次之,最不敏感的因素是泊松比。

The seepage module and stress-strain module of geoslope were applied to study the parameter sensitivity of landslide deformation based on the principle of orthogonal design.The results show that among the seven factors of permeability coefficient,saturated volume water content,bulk density,cohesion,internal friction angle,elastic modulus and Poisson's ratio,the three most sensitive factors of deep displacement of landslide are internal friction angle,bulk density and permeability coefficient,followed by elastic modulus,saturated volume water content and cohesion,and the least sensitive factor is Poisson's ratio.