从与山地灾害关系密切的地质环境条件入手,选择了岩性和断裂带大指标,以龙门山区为典型区,根据灾害发生学原理,建立敏感性评价模型,定量分析了岩性、断裂带等对山地灾害的敏感性,并根据敏感性指标对研究区进行了敏感性区分。结果表明:岩性对山地灾害的敏感性从大到小依次为次硬岩>硬岩>软岩层>极软岩层;断裂带对山地灾害的敏感度主要集中在距离断裂带0~2 km范围内。 Based on the geo-environmental conditions that are closely related to the mountain disasters, the lithology and the large index of the fault zone are selected. Taking the Longmen Mountain area as a typical area, a sensitivity evaluation model is established according to the principle of disaster occurrence, and the lithology and fault zone are quantitatively analyzed Sensitivity to mountain disasters, sensitivity sensitivity was used to distinguish the study area. The results show that the sensitivities of lithology to mountain disasters are in the order of hard rock, hard rock, soft rock and soft rock; the susceptibility of fault to mountain disaster mainly lies in the range of 0 ~ 2 km away from the fault Inside.