摘要
惠水地处扬子准地台黔南台陷贵定南北向构造变形区,为评价研究区地质灾害易发性,在总结前人研究成果的基础上,选取坡度、地层岩性及土体结构、斜坡结构、新构造运动与地震、人类工程活动、斜坡高度、降雨、斜坡变形破坏情况等作为评估因子,采用GIS与层次分析法耦合技术,完成地质灾害易发性分区定量分析.研究结果表明,研究区可划分4个高易发区、6个中易发区,其中,涟江街道、濛江街道、好花红镇、芦山镇、断杉镇及部分王佑镇,点密度为0.058个/km^(2);王佑镇,点密度为0.071个/km^(2);雅水镇、断杉镇及部分羡塘镇,点密度为0.035个/km^(2);摆金镇和岗度镇,点密度为0.035个/km^(2).研究成果可为惠水县防灾减灾、经济发展、城镇规划提供科学依据。
Huishui is located in the Guiding north-south structural deformation area of the Qiannan depression,Yangtze metaplatform.In order to evaluate the susceptibility of geological disasters in the study area,based on the summary of previous research results,slope,stratigraphic lithology and soil structure,slope structure,new tectonic movement and earthquake,human engineering activities,slope height,rainfall,and slope deformation and damage were selected as evaluation factors.GIS and Analytic Hierarchy Process coupling technology were used to complete the quantitative analysis of geological disaster susceptibility zoning.The research results showed that the study area can be divided into 4 high susceptibility areas and 6 medium susceptibility areas,including Lianjiang street,Mengjiang street,Haohuahong town,Lushan town,Duanshan town,and some Wangyou town.The point density is 0.058/km^(2);Wangyou town,with a point density of 0.071 per km^(2);Yashui town,Duanshan town,and some Xiantang town have a point density of 0.035 points/km^(2);The research results of Baijin town and Gangdu town have a point density of 0.035 points/km^(2),which can provide scientific basis for disaster prevention and reduction,economic development,and urban planning in Huishui county.
作者
吴林锋
息朝庄
彭松
罗开军
邓会娟
Wu Linfeng;Xi Chaozhuang;Peng Song;Luo Kaijun;Deng Huijuan(Guizhou Institute of Geo-environment Monitoring,Guiyang Guizhou 550018;School of Civil Engineering,Hunan City University,Yiyang Hunan 413000;Nuclear Resources Geological Survey,Non-ferrous Metals and Nuclear Industry Geological Exploration Bureau of Guizhou,Guiyang Guizhou 550005;Cores and Samples Center of Natural Resources,Yanjiao Hebei 065201)
出处
《国土资源导刊》
2024年第2期50-57,共8页
Land & Resources Herald
基金
湖南省自然科学基金省市联合基金项目(编号:2022JJ50277)
益阳市社科联项目(编号:2022YS154、2023YS154)
湖南城市学院教改课题。
关键词
地质灾害
GIS与层次分析法
耦合技术
易发性评价
惠水
geological hazards
GIS and analytic hierarchy process
coupling technology
evaluation of susceptibility
Huishui
