雾江大型滑坡体治理及涌浪分析

Analysis of Treatment of Wujiang Large Landslide and Surged Waves

雾江大型滑坡体长期处于缓慢蠕滑变形状态,危害涔天河水库建筑物安全,存在治理难度大、造价高的问题。通过刚体极限平衡法和有限元法,分析了滑坡的滑移模式与现状稳定状态,反演了滑带物理力学参数,系统地分析了工程蓄水及运行时滑坡体的整体及局部稳定性。通过计算与仿真,进一步研究了滑坡失稳涌浪及淤塞的影响,最终系统地提出了滑坡体治理优化方案。

Wujiang large landslide has been in a state of slow creep deformation for a long time which endangers the safety of the structures of Centianhe Reservoir, and is hard and expensive to treat. By use of the rigid body limit equilibrium method and finite element method, the landslide sliding mode and the current steady state were analyzed and the inversion of physical and mechanical parameters of slip zone were carried out. The overall and local stability of the landslide body during the reservoir impoundment and operation were systematically analyzed. Through calculation and simulation, the effects of landslide surged waves and siltation were further analyzed. And the optimization scheme of landslide treatment is finally proposed based on a systematically basis.