岩质边坡单折线滑动面稳定性影响因素分析

Analysis to the Factors Which Affect the Stability of Rock Slopes with Single Broken-line Slip Surface

针对岩质边坡单折线形滑动面这一特定滑动模式,主要从内因方面对边坡的影响因素进行分析,先采用多因素正交试验对影响单折线滑移型岩质边坡稳定的因素进行敏感性分析,得出下滑面黏聚力、坡高、坡角和下滑面摩擦角的敏感度高于其他因素,继而对工程中较关注的滑动面上物理力学参数对边坡安全稳定性进行分析,得出在黏聚力变化和一定时,对稳定系数的影响。

This paper studies the stability influence factors with specific reference to rock slopes with single broken-line slip surface.Firstly,orthogonal tests were performed to analyze the sensitivity of factors which influence the stability of rock slopes with single broken-line slip surface.It was concluded from the sensitivity analysis that cohesion of the downslide surface,the slope height,slope angle,and the friction angle of the downslide surface have higher levels of sensitivity than other factors.After that,an analysis was performed on the sensitivity of physical and mechanical parameters of the sliding surface which are generally more concerned in engineering and conclusions were drawn regarding the the influence on stability coefficient with constant or variable cohesions.