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龟头山滑坡体位于库区的正常蓄水位影响范围内,水库建成运行后,库水位的变动对坡体的安全性势必存在影响。基于稳定分析理论,对几种运行工况下坡体的安全性进行了计算分析,计算结果表明在蓄水前及正常蓄水情况下,古滑坡是稳定的,在考虑地震作用时,滑坡体的稳定性大大降低,稳定性系数为0.840<1.0,滑坡已经失稳。因此,龟头山古滑坡考虑到安全性的需要,在特殊情况下稳定性受到影响,应进行加固处理,确保水库的安全运行。
The Qingtoushan landslide body is located within the normal water storage area of the reservoir area. After the reservoir is completed and operated, the change of reservoir water level will inevitably affect the safety of the slope body. Based on the theory of stability analysis, the safety of downhill slopes under several operating conditions is calculated and analyzed. The results show that the landslide is stable before and during normal water storage. When considering the earthquake action, the landslide body Greatly reduce the stability, the stability coefficient of 0.840 <1.0, the landslide has instability. Therefore, Gu Shan Tou ancient landslide takes into account the need of safety, stability under special circumstances are affected, should be reinforced to ensure the safe operation of the reservoir.