锦屏水电站解放沟反倾高边坡变形机制的探讨

通过对锦屏水电站某一反倾高边坡的野外调查、室内测试实验及数值模拟计算分析 ,对其变形机制有了进一步的认识。对以往的结论重新进行论证 ,用证据说明问题 ,最终得出新的研究成果。本文认为解放沟左岸深层变形是由河谷快速下切过程中边坡发生深部卸荷松弛和倾内层状体斜坡的深部岩层弯曲倾倒共同作用所引起

DEFORMATION MECHANISM OF JIEFANGGOU HIGH STEEP DIPSLOPE IN JINPING HYDROPOWER STATION

The paper discussed the deformation mechanism of one high steep dipslope in Jinping hydropower station. Through field investigation, experimental analysis and numerical simulation, the authors have a more profound insight into the problem. The previous conclusions were discussed in the paper. There is evidence that problems exist in earlier analysis. As a result, a new insight was gained. The results indicate that the deformation of deep rock layer at Jiefanggou left bank high slope is caused by a combination of deep unloading relaxation at slope in the course of cutting valley in high terra stress area and bending-toppling of deep rock layer at high dipslope.