作　　者： ; ; ;

机构地区： 广东省水利水电科学研究院

出　　处： 《山地学报》 2012年第5期555-560,共6页

摘　　要： 在潘家铮山地滑坡垂直条分法滑速计算式的基础上,考虑库水阻力及受水作用后底摩擦系数减小的影响,推导出适合库岸滑坡滑速分析的垂直条分法改进计算式。利用该式,分析了鹅公带古滑坡失稳工况下的滑动结果,并比较了两种算法的差异。结果表明,鹅公带古滑坡蓄水失稳滑动后的最大水平滑速约8 m/s,两种算法的结果有一定差异。垂直条分法改进计算式考虑了库岸滑坡滑动过程中受库水作用的影响,计算结果更符合实际,能提高库岸滑坡滑速计算精度。 Based on the Pan Jiazheng vertical slice method formula and considering the water resistance and the de- crease of friction coefficient after the water influence, this paper proposes an improved formula of vertical slice method that is feasible to analyze the sliding velocity of landslides near reservoir. With this formula, this paper ana- lyzes the sliding velocity of Egongdai ancient landslide under unstable situation, and compares the difference of those two methods. The results shows that after water storage, the maximum horizontal velocity of Egongdai ancient landslide is about 8 m/s when it is sliding, and the results by the two methods are some different. Having consid- ered the water influence during sliding, the results by the improved formula of vertical slice method is more close to the reality, which can enhance the accuracy of the sliding velocity calculation for reservoir landslides. This research has some important reference values to the sliding velocity analysis of reservoir landslides.

关 键 词： 库岸滑坡 滑速计算 垂直条分法 改进公式 鹅公带古滑坡体

领　　域： [建筑科学] [建筑科学]