基于边坡稳定计算的软件分析对比

边坡稳定性分析一直是工程建设领域的常见问题也是难点，传统的分析方法主要借助于工程地质类比法、刚体极限平衡法等对边坡进行定性评价并求得安全系数。利用有限差分法软件FLAC3D，有限元法软件PLAXIS和传统的刚体极限平衡法软件理正对兴隆土质边坡进行稳定性分析和求解安全系数，数值分析法得到的滑动面比传统方法假定的圆弧滑动面更加合理，强度折减法得到的安全系数比传统方法更加准确。

Comparison of Software on the Slope Stability Analysis

The slope stability analysis is the common and difficult problem in the field of construction project.The traditional method is qualitative analysis about slope by the method of engineering geological analogy,rigid body limit equilibrium etc.and to look for safety coefficient.With the finite difference software FLAC3D,the finite element software PLAXIS and the rigid body limit equilibrium software,the stability analysis on slope in Xinglong is carried out and the safety coefficient is solved.The sliding surface obtained through numerical analysis is more reasonable than the circular one assumed through the traditional method,and the safety factor through strength reduction is more accurate than that through the traditional method.