基于灰色聚类法的鞍山城区岩溶塌陷危险性区划

Karst Collapse Hazard Zonation Based on Grey Clustering Method in the City Zone of Anshan

利用灰色聚类方法对鞍山城区岩溶塌陷危险性进行区划。首先在对鞍山城区钻孔资料深入分析的基础上,生成了13幅单因子图,为进行岩溶塌陷的危险性区划提供数据支持。为了科学准确地评估各因子对鞍山岩溶塌陷的影响,采用AHP法来确定危险性区划中的聚类权值。最后根据1万个栅格单元的评价结果,将鞍山城区依据岩溶塌陷危险性程度划分为1级、2级、3级、4级危险区以及无危险区共5个区域。经检验和分析,区划结果与实际情况较为吻合,表明灰色聚类法应用于鞍山城区岩溶塌陷危险性区划中是可行的。同时,区划结果也为鞍山市的建设规划提供了重要的地质依据。

The grey clustering method was applied in the karst collapse hazard zonation in the city zone of Anshan.First,thirteen single factor maps were created based on the deep analysis of data of 360 drills in the city zone,which supported the karst collapse hazard zonation with the data.The clustering weights were endowed by using AHP method to evaluate the influence of factors to karst collapse scientifically and exactly.On the basis of the zonation result on 10 000 units,the city zone could be divided into 5 ar...