攀西黑水河流域北部地区崩塌与滑坡分布规律

发布时间：2018-03-24 17:23

本文选题：黑水河流域　切入点：崩塌　出处：《长江科学院院报》2016年10期

【摘要】：攀西黑水河流域北部地区是我国地质灾害高易发地区。为深入研究该地区崩塌、滑坡灾害发育规律,基于现场调查和高精度遥感影像崩塌、滑坡解译,借助Arc GIS平台强大的空间分析能力,研究区内崩塌、滑坡的分布规律。主要成果与结论为:1研究区共发育崩塌76个,滑坡487个,93.4%的滑坡分布于10°~40°斜坡范围内,47.4%的崩塌发育于40°~50°斜坡;2地层岩土体结构组合特征及力学强度在宏观上决定山地灾害的类型及其易发性;3尽管研究区现今处于地震活动的相对平静期,但断层对崩塌、滑坡的发育仍有一定的影响(滑坡约300 m,崩塌约500 m),断层切过处往往发育大型崩塌和滑坡;4研究区滑坡的分布宏观上受河网水系的控制;5公路对滑坡发育的影响范围约300 m。
[Abstract]:The northern area of Heishui River basin in Panxi is a high risk area for geological hazards in China. In order to study the development of landslide and collapse in this area, the landslide is interpreted based on field investigation and high precision remote sensing image. With the help of the powerful spatial analysis ability of Arc GIS platform, the distribution of collapse and landslide in this area is studied. The main results and conclusions are as follows: 76 collapses are developed in the study area of 1: 1. 487 landslides, 93.4% of them are distributed in the range of 10 掳or 40 掳slope, 47.4% of landslides develop in 40 掳~ 50 掳slope, and the characteristics of rock and soil structure combination and mechanical strength determine the types of mountain disasters and their susceptibility. In a relatively quiet period of seismic activity, But the fault on the collapse, The development of landslide still has certain influence (landslide about 300 m, collapse about 500 mW, fault cut place often develop large scale collapse and landslide distribution in the study area of landslide No. 4. The distribution of landslide is controlled by river network water system and the influence range of highway No. 5 on landslide development is about 300 mm.).
【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;四川省地质调查院遥感中心;四川省电力公司;
【基金】：国家电网公司科技项目(资助)(SGSCJY00JHJS2016000)
【分类号】：P642.2

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