路基工程2024,Issue(5) :39-43.DOI:10.13379/j.issn.1003-8825.202311007

基于层次分析法和GIS的地质灾害易发性评价

Evaluation of Geological Hazard Vulnerability Based on Hierarchical Analysis Method and GIS

杨吉红 李剑 颜良宇 王玉杰
路基工程2024,Issue(5) :39-43.DOI:10.13379/j.issn.1003-8825.202311007

基于层次分析法和GIS的地质灾害易发性评价

Evaluation of Geological Hazard Vulnerability Based on Hierarchical Analysis Method and GIS

杨吉红 1李剑 2颜良宇 3王玉杰3
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作者信息

  • 1. 湖北交投武天高速公路有限公司,湖北天门 431701
  • 2. 湖北省交通规划设计院股份有限公司,武汉 430051
  • 3. 中国地质大学(武汉)工程学院,武汉 430074
  • 折叠

摘要

结合层次分析法,选取地层岩性、地质构造、降雨、地形坡度、NDVI(归一化植被指数)、人类工程活动6项评价指标,构建五峰县地质灾害易发性评价指标体系,进行地质灾害易发性评价和分区.结果表明:地质灾害中高易发区约占31.40%,主要分布于河流流域及附近的斜坡地带、道路和断裂构造带两侧、工程活动密集区;低易发区约占68.60%,主要分布在山间谷地、植被覆盖率高、工程活动较少的区域;评价结果可为五峰县地质灾害区划和预防提供参考.

Abstract

Combined with the hierarchical analysis method,six evaluation indexes,namely,stratigraphic lithology,geological structure,rainfall,topographic slope,NDVI(Normalized Vegetation Index),and human engineering activities,were selected to construct an evaluation index system for the geologic hazard susceptibility in Wufeng County and carry out geological hazard susceptibility evaluation and zoning.The results show that about 31.40%of the geologic hazards are in the medium and high susceptibility zones,which are mainly distributed in the river basins and nearby slopes,on both sides of the roads and rupture tectonic zones,and in the areas with intensive engineering activities.The proportion of low susceptibility areas is about 68.60%,mainly distributed in mountain valleys,areas with high vegetation cover and less engineering activities.The evaluation results can provide a reference for geologic disaster zoning and prevention in Wufeng County.

关键词

地质灾害/层次分析法/自然间断法/易发性评价/灾害预防

Key words

geological hazards/hierarchical analysis method/natural discontinuity method/vulnerability assessment/disaster prevention

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出版年

2024
路基工程
中铁二局集团有限公司,西南交通大学,中铁二院工程集团有限责任公司

路基工程

影响因子:0.36
ISSN:1003-8825
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