水土保持通报2018，Vol.38Issue(1)：246-251,6.DOI:10.13961/j.cnki.stbctb.2018.01.043
基于组合赋权法的中巴公路奥依塔克至布伦口段泥石流危险性评价
Hazard Assessment of Debris Flow at Aoyitake-Bulunkou Section of China-Pakistan Highway Based on Combined Weight Method
摘要
Abstract
[Objective] The hazard assessment of debris flow was studied in order to provide an effective method for determining the weights of hazard assessment indexes in debris flow prone area.[Methods] In view of the weakness of single assigning weight method,analytic hierarchy process (AHP) and entropy method were adopted respectively to determine the subjective and objective weights of the debris flow hazard assessment indexes for the China-Pakistan highway,then the comprehensive weights were estimated based on combined weight method.Taking the debris flow along the China-Pakistan highway as a case study,this paper selected ten assessment indexes including magnitude,frequency,length of main groove,basin incision density,basin area,relative difference of elevation,longitudinal slope of main groove,maximum rainfall during 24 hours,thickness of loose deposit,length of mud and sand supply.The method mentioned above was used to assess the hazard of debris flow in this area after the acquisition of field data of debris flow.Besides,the results coincided with the set pair analysis method and field investigation results.[Results] Only five debris flow gullies,accounting for 25％ of the total,were moderate dangerous,which meant that most debris flow gullies in this area were high dangerous.[Conclusion] The evaluation results were consistent with the field investigation,which confirmed the reliability of the method.关键词
中巴公路/泥石流/危险性评价/组合赋权法Key words
China-Pakistan highway/debris flow/hazard assessment/combined weight method分类
天文与地球科学引用本文复制引用
叶潇潇,钱德玲,朱志鹏,谢乐,杨罡,刘杰..基于组合赋权法的中巴公路奥依塔克至布伦口段泥石流危险性评价[J].水土保持通报,2018,38(1):246-251,6.基金项目
国家自然科学基金项目“基于液化地基大变形桩基高层建筑结构体系动力响应的研究”(51378168) （51378168）
中央高校基本科研业务费专项资金项目“高速列车冲击荷载下隧道共振及其减震降噪的研究”(2012HGZY0024) （2012HGZY0024）
