中文摘要：

通过Plaxis有限元软件，应用其提供的Phi—c折减方法，对坝坡的稳定性进行分析。当坝坡失稳破坏，有限元计算将不收敛，用这种判断方法得到此时的折减系数作为坝坡稳定安全系数，同时得到滑裂面位置及动态失稳模拟。对计算结果的精度做了对比，与Bishop法和有限元软件Abaqus计算结果相差为2％-3％，计算结果在两者之间，证实了其准确性和工程实用性。

英文摘要：

Based on Plaxis, this article analysed the stability of homogenousslop bu using the meth- od named Phi - c offered by Plaxis. Using the numerical non - convergence of the program as the fail-ure criteria to get the reduction fator at this moment as the safety factor of the slope. Simultaneously, we can watch the dynamic simulation of the instability and the position of the sliding surface. The re-suits of this article have compared with other results by using other method of Bishop and Abaqus. The difference between them are no more than 3%. According to this comparation, the method talked in this article is accurate ＂and practicable in engineering.