基于AHP方法的山区河道截流难度影响因素研究  

AHP method-based study on impact factors of mountain river closure difficulty

作　　者：马旭东[1] 杨庆[1] 聂瑞华[1] 戴光清[1] 

机构地区：[1]四川大学水利水电学院水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《水利水电技术》2017年第5期97-101,共5页Water Resources and Hydropower Engineering

摘　　要：为了获取山区河道截流难度的主要影响因素,首先重点分析了影响山区河道截流难度的各因素的成因及机理,并重点分析了河床平面形态、河床覆盖层与河道坡降三因素对河道截流难度的影响。然后,基于层次分析法(AHP)基本原理,建立了山区河道截流难度影响因素层次分析模型,最终获取得到影响河道截流难度的主要因素。结果表明:作为截流施工主体的人(即专家决策)所占权重值为0.159,是影响河道截流难度最主要的因素;另外,施工机械、抛投强度、现场监测、河床覆盖层、河道坡降、分流能力各因素所占权重值分别为0.126、0.118、0.048、0.071、0.071、0.042,是影响山区河道截流难度的主要因素,减小截流难度的措施宜从上述各因素出发考虑。研究成果可为实现山区河流的科学、安全截流提供理论支撑。In order to obtain the main impact factors of mountain river closure difficulty,the causations and mechanisms of all the factors to impact the difficulty of mountain river closure are mainly analyzed herein at first,and then the impacts from the plane form of river bed,overburden on river bed and river channel gradient are emphatically analyzed as well. Afterwards,the AHP model of the impact factors of mountain river closure difficulty is established on the basis of the basic principle of analytic hierarchy process（ AHP）,thus the main factors to impact the difficulty of the mountain river closure are finally obtained; the result shows that as the subject for the closure construction,the weight value of the human being is 0. 159,and then is the most important factor to impact the river closure; moreover,the weight values of the factors of construction machinery,dumping intensity,in situ monitoring,overburden on river bed,river channel gradient,diversion capacity are 0. 126,0. 118,0. 048,0. 071,0. 071 and 0. 042 respectively,which are the main factors to impact the mountain river closure,thus the measures to reduce the closure difficulty are appropriate to be considered from the aspects of all the factors mentioned above. The study result can provide a scientific basis for realizing scientific and safe closure of mountain river.

关 键 词：截流 截流难度 影响因素 层次分析法 

分 类 号：TV672.1[水利工程—水利水电工程]