地震作用下边坡稳定性安全评价的研究

The Study of Safety Evaluation on Slope Seismic Stability

地震作用下边坡的失稳机理、稳定性评价是一个很复杂的问题,国内学者对地震边坡稳定性评价指标安全系数进行了研究,但是以目前的研究现状,还无法对地震作用下的边坡稳定性进行准确恰当的评价。文章分析了目前主要的地震边坡稳定性评价方法的优缺点,并采用这些评价方法对两个边坡算例进行了分析,算例分析表明:各种评价方法给出的稳定性系数不同,同种工况下边坡稳定性程度也不同,不利于工程实际应用,说明提出准确、合理的地震边坡稳定性评价方法和建立统一的评价标准的必要性,最后对地震边坡稳定性评价进行了展望。

The failure mechanism and stability safety evaluation of slope under earthquake is a complex problem. The domestic scholars have studied the safety factor slope seismic stability evaluation index,however,by now it's difficult to evaluate the slope seismic stability accurately.This paper analyses the excellence and disadvantage of the slope's stability evaluation methods under earthquake,and examples are analyzed using those methods to show that: Different evaluation method gives different stability safety factor and different slope stability degree,which result in their inconvenient application in engineering.So it' s necessary to put forward accurate seismic slope stability evaluation method and set up unified slope seismic stability evaluation standard.Finally,the seismic slope's stability evaluation in future is prospected.