摘要
应用模糊数学综合评价的方法,以唐山平原区主要地质灾害(地震、岩溶塌陷、采空塌陷、地面沉降)为评判因子,进行定量的危险性评价。评价结果表明:唐山市重度危险区占5%,较重危险区占13%,两者之和占18%;中度危险区占47.13%,轻度危险区占34.87%,两者之和占82%。这说明,从总体上看,唐山平原区大部分地区地质灾害的危险程度较低,但重度危险区大部分是人口密度大、工业密集的唐山市区,因此绝不能忽视地质灾害的危险性。
This paper, based on fuzziness mathematics, assesses quantitatively the potential hazards in the major geological disasters such as earth quakes, karst collapse, mining subsidence and land subsidence in Tangshan plain. The results indicate that the very dangerous area is 5%, dangerous area is 13%, both 18%; the intermediate dangerous area is 47. 13% and the less dangerous area is 34.87%, both 82% , in Tangshan city, implying a low geological hazard degree in most Tangshan plain; but the very dangerous area is most located in Tangshan downtown, where is densely populated and highly industrialized, and shall be emphasized to prevent the geological hazards.
出处
《资源与产业》
2007年第5期28-30,共3页
Resources & Industries
关键词
唐山平原区
地质灾害
综合评价
Tangshan plain
geological disasters
comprehensive assessment
