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重庆市巫溪县中梁乡硝洞槽-郑家大沟滑坡是一处典型的大型陡倾反向岩质滑坡,滑坡是在坡脚中梁水库蓄水后形成的,研究该类滑坡的破坏机制及影响因素对于开展该类滑坡的防治具有十分重要的意义。笔者在分析滑坡变形特征的基础上,结合专业监测成果,对硝洞槽-郑家大沟滑坡的破坏机制及影响因素进行了深入研究。研究表明,滑坡破坏类型主要为弯曲-折断破坏,包括弯曲、弯曲拉裂、折断破坏3个阶段。滑坡的影响因素包括坡体内在因素和诱发因素2个方面,本文重点研究了诱发因素,该滑坡诱发因素主要为水库蓄水,库水位抬升后,滑坡变形持续增加,且库水位越高,滑坡变形速度越快。
Nongdong Cave in Zhongliang Township, Wuxi County, Chongqing Municipality - Zhengjiagougou landslide is a typical large-scale steep-reverse rocky landslide. The landslide is formed after the Zhongliang Reservoir in the foot of the slope has been impounded to study the landslides The damage mechanism and its influencing factors are of great significance for the prevention and control of such landslides. Based on the analysis of deformation characteristics of landslide, combined with the results of professional monitoring, the author made an in-depth study on the failure mechanism and influencing factors of the nitrate-dong cave-Zhengjiagagou landslide. The research shows that the main types of landslide failure are bending-fracture failure, including bending, bending and fracture, and fracture-breaking. The influencing factors of landslide include two aspects: intrinsic factor and inducing factor of the slope. In this paper, the inducing factors are mainly studied. The predominant factors of the landslide are reservoir water storage. After the water level rises, the deformation of the landslide continues to increase, and the higher the reservoir water level, Deformation faster.