四川省万源市花楼乡董家梁滑坡特征及成因机制
发布时间：2019-06-19 12:33
【摘要】：万源市花楼乡董家梁滑坡属于典型的四川盆地盆周山区红层地层滑坡。通过现场调绘、工程地质勘探等手段,揭示该滑坡为强大水压力起主导作用的滑动变形破坏。根据滑坡滑动后的空间形态及残留体特征,将滑坡划分为滑坡启动区(A区)、滑坡西侧推挤滑动区(B区)、滑坡东侧牵引滑动区(C区)三个部分。研究表明滑坡启动始于地下水活动强烈的中部区域(A区),水压力随雨量增加而急剧增长,该区岩体受水压力推挤沿层面及侧裂结构面发生剪切破坏,形成楔形体滑动,同时牵引B区和C区岩体产生推挤、拉张、牵引滑动破坏。
[Abstract]:Dongjialiang landslide in Hualou Township, Wanyuan City, belongs to the typical red formation landslide in the mountainous area around the basin of Sichuan Basin. By means of field drawing and engineering geological exploration, it is revealed that the landslide is the sliding deformation failure which plays a leading role in the strong water pressure. According to the spatial shape and residual characteristics of the landslide after sliding, the landslide is divided into three parts: the start-up area (area A), the pushing area (area B) on the west side of the landslide and the traction area (area C) on the east side of the landslide. The results show that the landslide starts in the central area (area A) with strong groundwater activity, and the water pressure increases sharply with the increase of rainfall. The rock mass in this area is pushed by water pressure along the plane and the lateral crack structure plane, resulting in wedged sliding, and at the same time traction B and C area rock mass produces push extrusion, tension and traction sliding failure.
【作者单位】： 成都理工大学地质灾害防治与地质环境保护国家重点实验室;西南科技大学环境与资源学院;
【基金】：四川省科技支撑技计划项目(2014FZ0009)~~
【分类号】：P642.22
本文编号：2502349
[Abstract]:Dongjialiang landslide in Hualou Township, Wanyuan City, belongs to the typical red formation landslide in the mountainous area around the basin of Sichuan Basin. By means of field drawing and engineering geological exploration, it is revealed that the landslide is the sliding deformation failure which plays a leading role in the strong water pressure. According to the spatial shape and residual characteristics of the landslide after sliding, the landslide is divided into three parts: the start-up area (area A), the pushing area (area B) on the west side of the landslide and the traction area (area C) on the east side of the landslide. The results show that the landslide starts in the central area (area A) with strong groundwater activity, and the water pressure increases sharply with the increase of rainfall. The rock mass in this area is pushed by water pressure along the plane and the lateral crack structure plane, resulting in wedged sliding, and at the same time traction B and C area rock mass produces push extrusion, tension and traction sliding failure.
【作者单位】： 成都理工大学地质灾害防治与地质环境保护国家重点实验室;西南科技大学环境与资源学院;
【基金】：四川省科技支撑技计划项目(2014FZ0009)~~
【分类号】：P642.22
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