中文摘要：

以石榴树包滑坡在库水作用下的物理模型试验为例，采用FLAC方法对滑坡模型在不同抬升角度下塑性区的变化进行数值模拟，获得了该滑坡模型试验中模型架抬升角度与降低滑带粘聚力之间的对应关系，并且得出在抬升模型架18°时滑带的变形破坏与降低滑带粘聚力为1．8kPa时滑带的变形破坏是一致的，可以指导该滑坡在库水位作用下滑带士力学参数降低的物理模拟，同时也可为其它水库型滑坡的物理模型试验提供参考。

英文摘要：

In the case of physical model test on Shiliushubao landslide under the action of reservoir water, FLAC method was used to numerically simulate the changes in plastic zone of landslide model at different angles of lifting - up, and a corresponding relationship between the lifting - up angle of the model frame and the decrease in cohesion of the sliding zone was obtained. The results show that the deformation failure of the sliding zone when lifting up the model frame by 18° is consistent with that of the sliding zone when decreasing the cohesion of the sliding zone by 1.8kPa. , which provides guidance for the physical model test on the mechanics parameters decrease of soil in the sliding zone of the landslide under the action of reservoir water, can be referred to during physical model test on other reservoir landslides.