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通过对十天高速大龙洞碎石土滑坡的工程地质条件和诱发因素进行调查研究,采用传递系数法和数理统计分析法,对影响碎石土滑坡稳定性的因素进行敏感性分析。结果表明,大龙洞碎石土滑坡主要是由持续降雨导致滑体容重增加、滑带土强度降低引起的滑坡,而影响碎石土滑坡稳定性的因素依次为滑动带内摩擦角、滑面倾角、滑动带粘聚力和滑体容重。
Through the investigation of engineering geological conditions and induced factors of the Dalongdong gravelly landslide, the sensitivity analysis of the factors affecting the stability of the gravel landslide is carried out by using the transfer coefficient method and mathematical statistics analysis method. The results show that the landslides caused by gravel landslide in Dalongdong are mainly caused by the increase of bulk density of landslide caused by continuous rainfall and the decrease of strength of landslide soil. The factors affecting the stability of gravel landslide are as follows: , Sliding band cohesion and bulk density.