地震作用下岩体边坡破坏机制及稳定性研究进展

从岩体结构控制论的观点出发,分别从理论分析、数值模拟和试验研究等方面,综述了近年来块状结构、层状结构、碎裂状结构及散体状结构岩体边坡的地震稳定性及破坏机制的研究进展,系统总结了地震作用下不同结构岩体边坡的破坏模式。针对当前地震荷载作用下岩体边坡破坏机制和稳定性研究中存在的不足,指出应当考虑地震动空间变化对岩体边坡变形与稳定的影响,加强岩体内部结构特征研究,提高物理模型试验的准确性,并深入研究地震与地下水共同作用下岩体边坡的破坏机制。

Advances in failure mechanisms and stability of rock slopes under earthquake action

From the viewpoint of rock mass structure control, the research progress of dynamic stability and damage mechanisms for rock slopes of massive structures, layered structures, fragmented structures, and discrete structures in recent years is reviewed in terms of theoretical analysis, numerical simulation and experimental research. The failure modes of rock mass slopes with different structures under earthquake action are summarized systematically. Aiming at the shortcomings of the current research on the failure mechanism and stability of rock slopes under earthquake load, it is pointed out that the influence of spatial variation of earthquakes on the deformation and stability of rock slopes should be considered. The study on the internal structural characteristics of rock mass should be strengthened and the accuracy of physical model test should be improved. In addition, the failure mechanism of rock slopes under the joint action of groundwater and earthquakes should be further studied.