颗粒流离散元在滑坡运动过程模拟中的应用

介绍了颗粒流离散元的分析原理，以某岩质边坡为实例，构建了计算模型。根据实际资料，在计算模型中加了节理，节理的力学参数弱于岩体。在下方的抗滑挡土墙完全失去作用的情况下，用此模型对该滑坡的运动过程进行了计算预测，分析了整体的变形、不同部位的位移和应力等运动特点，上部粉质粘土区系拉裂引起的下滑，下部碎石土区因挡墙损坏而产生沿节理面的滑动，但拉应力变化不大。指出了在该滑坡存在2个滑动面，并针对2个滑动面提供了相应的治理建议。

Application of particle flow code to simulation of movement of landslide

The particle flow analysis method is introduced and applied to simulate a rock slope. The joints are formed according to the practical data; and the mechanical parameters of joints are smaller than those of the rock. When the retaining wall below fails to function completely; the movement process of the landslide is calculated and forecasted; and the deformation of the whole landslide, displacements and stresses of various positions, are analyzed. The upside powder clay slips resulting from ripping within itself, while downside gravel slip because of the destruction of the retaining wall and decrease of the tensile stress. The 2 sliding planes are determined and the suggestions for treatment are proposed.