有限差分强度折减法的应用分析

与传统的边坡稳定性分析研究方法相比，利用有限差分法，通过强度折减来求得边坡的安全系数，更加方便合理，更能够真实地反映边坡的实际情况，它对于天然边坡、填筑边坡和开挖边坡都适用。运用有限差分强度折减法，借助FLAC-3D分析程序。选择理想弹-塑性模型、合适的屈服准则和流动法则，评价西段村水库两级消力池开挖黄土边坡的稳定性。得到了良好的效果，进一步证实了有限差分强度折减法在工程中的实用性。

Application of Finite-Difference Strength-Reduction Method

Comparing with the conventional method of slope stability study and analysis, it is more convenient and reasonable and can reflect the actual slope condition in a more realistic way to obtain the safety factor of slope through methods of strength-reduction and finite-difference. It applies to natural slopes, reclaimed slopes and excavated slopes. It selects ideal elasto-plastic model and suitable yield criterion and moving principle to evaluate the stability of loess slopes of excavated two level stilling basins of Xiduancun Reservoir by using finite-difference strength-reduction method and FLAC-3D analytical program, which has achieved good results and further approved the practicability of finite-difference strength-reduction method in projects.