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基于极限平衡理论,综合考虑张拉裂缝积水深度、滑面出流缝是否堵塞、坡顶超载、地震荷载效应以及被动块倾角等因素的影响,推导出了多影响因素条件下含主控弱面双滑面岩石边坡抗滑稳定性系数的表达式,并分析了几种相关参数组合对双滑面破坏岩石边坡稳定性的影响。分析表明:滑面出流缝被堵塞比滑面出流缝未堵塞时对边坡稳定性的影响更大,边坡稳定性随着坡顶张拉裂缝积水深度增加、坡顶附加荷载增大、地震影响效应的增大而减小,在滑面出流缝未堵塞的情况下被动块倾角为20°时双滑面岩石边坡抗滑稳定性系数最大,滑面出流缝被堵塞的情况下被动块倾角为9°时双滑面岩石边坡抗滑稳定性系数最小。针对工程实际,提出了相应的工程建议。
Based on the theory of limit equilibrium, considering the factors such as the depth of waterlogging, the blockage of the outflow seams, the overloading of the top of the slope, the seismic load effect and the obliquity of the passive block, The expressions of the anti-sliding stability coefficients of rock slope with double sliding surface and the effects of several related parameters combinations on the stability of rock slope with double sliding surface damage are analyzed. The analysis shows that the blockage of the outflow slot is more affected than the outflow slot of the block, the stability of the slope increases with the increase of the water depth of the top of the block, Large and the impact effect of earthquakes increases. When the passive block inclination is 20 °, the coefficient of sliding stability of the double-slide rock slope is the largest, and the slip-out of the slip surface is blocked The coefficient of sliding stability of the double sliding surface rock slope is the smallest when the passive block inclination is 9 °. According to the actual project, the corresponding engineering suggestion was put forward.