土质边坡破坏过程的数值模拟分析

利用基于离心试验原理的RFPA离心加载法对土质边坡的稳定性进行了数值模拟，无需假定破坏面的位置和形状，就可以直观地得到坡体的滑移破坏面，同时求得相应的安全系数。通过对支护前后边坡的破裂模式、安全系数的比较，表明支护措施发挥了很好的作用，对实例的分析说明RFPA离心加载法能够克服传统方法无法考虑土体与支挡结构之间共同作用及其变形协调的问题。证明RFPA离心加载法对于复杂的边坡稳定性分析是实用的．对滑坡的防治也有一定的参考价值，具有较好的应用前景。

Digital simulation analysis on failure process of soil slope

With the RFPA centrifugal loading method base on the centrifugal test principle, a digital simulation was made for the soil slope. Without the need to assume the location and sharp, it can directly to have the sliding failed face and have the related secety coefficients. After the comparison between the failure mode and safety coefficient before and after the support, the results showed that the support measures played a good role. The analysis of the cases showed that the REPA centrifugal loading method could overcome the joint function between the soil mass and support structure and the deformation coordination and that the REPA centrifugal loading method was practical to the analysis of the complicated slope stability. Specially, the simulation of the slope failure process is an important to understand the failure formation mechanism of the slope and also has a certain reference value to the prevention and control of the slope with an application outlook.