【摘要】 首先介绍了刚体极限平衡法的基本原理,然后分析了剩余推力法存在的问题,进而提出了一种改进剩余推力法,其基本思想是:在出现屈服的条分面上,改用 Sarma 法确定条分面之间的作用力,即假定该条分面上的水平推力不变,但剪切力由摩尔-库仑准则确定。最后对改进剩余推力法进行了算例考核,并介绍了三板溪工程应用情况。更多还原

【Abstract】 The principle of the limit equilibrium method is discussed firstly; then the shortcoming of the residual thrust method is analyzed; and the improvement is conducted. The basic idea of the improvement is: when the yield occurs at a slice face, the Sarma method will be applied to calculate the action between slices, i.e., the shear force is calculated by the Mohr-Coulomb criterion while the horizontal thrust is unchanged. Finally, the verification of the improved residual thrust method is shown; and the engineering application to Sanbanxi Hydropower Project is illustrated.更多还原