地震作用下滑坡工程稳定性分析方法研究

Stability Analysis of Slopes Under Earthquake Action

根据"小震不坏,中震可修,大震不倒"的安全要求,提出采用Newmark法、拟静力法、静力有限元法、动力有限元法进行滑坡工程地震作用下的稳定性分析。根据得出的最小安全系数、安全系数时程曲线和永久位移等结果,进行综合判断,可以避免由于仅采用某一种分析方法而可能带来的片面分析,对于工程实例地震作用下的稳定性分析有一定的指导意义和实际意义。

According to the criterion, it was put forward that landslide engineering under earthquake effect could be calculated using Newmark method, pseudo-static method, static finite element method and dynamic finite element method, by sticking to the safety requirements that the designed structures must resist against minor earthquake without any damage, moderate earthquake with repairable structural damage and stand against strong earthquake. According to the calculation results of the minimum safety coefficient, safety coefficient time-history curve and permanent displacement, comprehensive judgment can be made and the one-sided analysis would be avoided, which has significance for stability analysis of engineering examples under earthquake effect.