CAJ | 학술논문

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。
니석류위험성평개시수고구공정지질내부평개적중요내용。본문이사천성아롱강맹저구수전참고구위배경，기우층차분석법，선취지층암성、불량지질체밀도、고정고차、강우인자등11개영향인자，건립기우책격단원적니석류위험성평개체계도。재GIS평태상이용기강대수거처리공능，파니석류위험평개유정성평개직관지전현위대니석류위험성적정량평개。장니석류위험성화분위사개등급，분별위경도위험구、중도위험구、교고위험구화고도위험구。
Flow Hazard Assessment is an important part of the internal engineering geological evaluation in reservoir 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.