基于加权信息量的镇江高新区滑坡地质灾害易发性评价  

Susceptibility evaluation of landslide in the high-tech region of Zhenjiang based on weighted information

作　　者：崔雨 崔志鹏 杨春杰[1] 金华丽 谭燕 方龙建 Cui Yu;Cui Zhipeng;Yang Chunjie;Jin Huali;Tan Yan;Fang Longjian(No.3 Geological Team of Jiangsu Geological Bureau,Zhenjiang 212001,Jiangsu,China;No.1 Geological Team of Jiangsu Geological Bureau,Nanjing 210041,Jiangsu,China;All Factor Testing Laboratory,Engineering Innovation Center for Urban Underground Space Exploration and Evaluation,Ministry of Natural Resources,Nanjing 210041,Jiangsu,China)

机构地区：[1]江苏省地质矿产局第三地质大队,江苏镇江212001 [2]江苏省地质矿产局第一地质大队,江苏南京210041 [3]自然资源部城市地下空间探测评价工程技术创新中心全要素测试实验室,江苏南京210041

出　　处：《地质学刊》2024年第1期107-114,共8页Journal of Geology

基　　金：江苏省地质矿产科研项目“降雨-干湿循环作用下下蜀土边坡的现场监测及失稳机理研究”(2019KY03)。

摘　　要：合理选取地质灾害影响因子并对因子进行优化分级是准确评价地质灾害易发性的关键。结合研究区实际情况,选取7个指标因子构建滑坡影响因子指标体系,并以各因子条件下滑坡灾害比例和信息量曲线的突变点为依据,对连续型评价指标因子进行优化分级。在此基础上,基于ArcGIS平台,运用层次分析法加权的信息量模型对镇江高新区滑坡灾害的易发性进行评价。根据易发区划分指标将研究区划分为高、中、低滑坡地质灾害易发区,划分结果与已有滑坡灾害分布有较好的对应关系,评价结果具有较高的准确性。该评价方法可为低山丘陵地区滑坡地质灾害的评价与防治规划提供参考。The key to the accurate evaluation of geological hazard susceptibility is to select the influencing factors and factor classification reasonably.According to the actual situation of the study area,seven index factors have been selected to build the landslide influence factor index system.The continuous index factors of evaluation have been optimized and graded with the landslide disaster proportion and the abrupt point of information curve under each factor condition.Based on the grading and the ArcGIS platform,the information model weighted by analytic hierarchy process was used to evaluate susceptibility of landslide in the high-tech region of Zhenjiang.The study area was divided into high,medium and low risk area,which corresponded well with the distribution of existing landslides.This evaluation method can provide reference for the evaluation and control planning of landslide geological hazards in low mountain and hilly areas.

关 键 词：影响因子 因子分级 加权信息量模型 ARCGIS 滑坡易发性评价 镇江 

分 类 号：P694[天文地球—地质学] P642.22