摘要
论文以贵州省开阳县为研究区域,综合当地滑坡灾害在各种因素下的分布统计情况以及现场实地踏勘对研究区的整体了解,选取坡度、工程岩组、斜坡结构、道路、采矿、高程、降雨、坡向、地质构造、水系、地貌及坡型等12类评价指标,将层次分析法与GIS空间分析功能结合起来,分别计算各评价指标的合成权重,建立滑坡灾害危险性评价体系,从而对研究区滑坡危险性做出评价。结果表明,研究区内高危险区面积占研究区总面积的25.9%,滑坡灾害比例却为72.16%,说明比较符合实际情况,此评价结果可以为当地的滑坡防治工作提供参考。
This paper takes Kaiyang county as the research area.The distribution statistics of local landslide disaster under various factors as well as the overall understanding of field survey of the study area were integrated.Twelve evaluation indexes including slope,engineering rock group,slope structure,road,mining,elevation,rainfall,slope direction,geological structure,water system,landform and slope type were selected.The Analytic Hierarchy Process(AHP)is combined with GIS spatial analysis function.The synthetic weight of each evaluation index was calculated separately.Construct landslide risk assessment system.The landslide hazard in this area was evaluated.The results showed that the area of high-risk area accounted for 25.9%of the total area.The proportion of landslide disaster was 72.16%.The description is more in line with the actual situation.The evaluation results can provide reference for the local landslide prevention and control work.
作者
李子安
覃乙根
LI Zi-an;QIN Yi-gen(Guizhou University,Guiyang 550025,China)
出处
《河北地质大学学报》
2020年第1期33-38,共6页
Journal of Hebei Geo University
基金
贵州省山地地质灾害防治工程技术研究中心项目(黔科合平台人才〔2017〕5402号)。
