某滑坡稳定性的无网格法分析

Landslide Stability Analysis Using Meshfree Method

无网格法避开了对网格的依赖,且其具有收敛更快、精度更高、自适应性强等特点,目前已成为边坡稳定性计算的主要方法之一。利用无网格法中的再生核质点法对一典型滑坡进行分析,指出滑坡发生的原因。安全系数的计算采用强度折减法,并与极限平衡法的结果进行对比,采用再生核质点法计算的滑坡算例得到了与极限平衡法相近的安全系数,计算结果可以很直观地反映出边坡的破坏形态,与实际滑坡的分布特征较为吻合,表明该方法适合应用于边坡工程问题的计算分析。

In comparison to finite element method,meshfree method is independent of the mesh quality.Reproducing Kernel Particle Method was used to study the cause a typical landslide.The safety factor was obtained by the strength reduction method,and compared with the limit equilibrium method.The results of meshfree method yield more straight forward slope deformation at failure that is close to the actual field monitoring.