基于层次分析法的水库区泥石流危险性评价研究  

The Study on Debris Flow Hazard Assessment of Reservoir Area on the Basis of AHP

作　　者：邓志辉[1] 谢谟文[1] 尹彦礼[2] 王立伟[1] 

机构地区：[1]北京科技大学土木与环境工程学院,中国北京100083 [2]华北水利水电学院,河南郑州450011

出　　处：《科技视界》2014年第33期188-189,229,共3页Science & Technology Vision

摘　　要：泥石流危险性评价是水库区工程地质内部评价的重要内容。本文以四川省雅砻江孟底沟水电站库区为背景,基于层次分析法,选取地层岩性、不良地质体密度、高程高差、降雨因子等11个影响因子,建立基于栅格单元的泥石流危险性评价体系图。在GIS平台上利用其强大数据处理功能,把泥石流危险评价由定性评价直观地展现为对泥石流危险性的定量评价。将泥石流危险性划分为四个等级,分别为轻度危险区、中度危险区、较高危险区和高度危险区。Flow Hazard Assessment is an important part of the internal engineering geological evaluation in reaervoir area . To establish the assessment system diagram based on mudslides hazard of grid units , this paper on the basis of AHP, chooses the reservoir area of Meng Di Gouhydropower station, Yalong River, Sichuan, as the object of study and selects lithology, poor geological density , elevation difference ; rainfall, etc. altogether 11 inflencing factors.Taking advantage of the powerful data processing capabilities of GIS ,the author of this paper visually turns the qualitative evaluation of debris flow hazard assessment to the quantitative evaluation. The debris flow hazard is divided into four levels, namely the danger area of light, moderate, higher and the highest.

关 键 词：层次分析法 泥石流 危险性评价 GIS 水电站库区 

分 类 号：P642.23[天文地球—工程地质学]