欢迎来到天天文库
浏览记录
ID:52174810
大小:806.69 KB
页数:5页
时间:2020-03-23
《基于AHP方法的山区河道截流难度影响因素研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、水利水电技术第48卷2017年第5期基于AHP方法的山区河道截流难度影响因素研究马旭东,杨庆,聂瑞华,戴光清(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)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,
2、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。关键词:截流;截流难度;影响因素;层次分析法doi:10.13928“.cnki.wrahe.2017.05.016中图分类号:7rv672.1文献标识码:A文章编号:1000—0860(2017)05-0097-05AHPmethod_basedstudyonimp扯tfacto体ofmountainriVerc
3、losuredimcIlltyMAXudong,YANGQing,NIERuihua,DAIGuangqing(StatKeyLaboratoryofHydralllicsandMountainRiverEngineering,CoUege《WaterResource&Hydropower,SichuanUniversity,Chengdu610065,Sichuan,China)Abstract:InordertoobtaintIlemainimpactfactorsofmountainriverclosuredimculty,thecaus砒ionsandmechanismsofaU出ef
4、actorstoimpactt}ledi伍cllltyofmountainriverclosure盯emailllyanalyzedhereinatfirst,andt11entheimpactsf而mtllepl蚰efo珊ofriverbed,overburdenonriverbedandriverchannelgradientareemphaticallyanalyzedasweⅡ.A』terw州s,theAHPmodeloftlleimpactf如torsofmountainriverclosuredimcultyisestablishedonthebasisoftllebasicpri
5、ncipleofallal”ichierarchyprocess(AHP),thustllemainfactorstoimpactthedimcultyofthemountainriverclosurearefinallyobtained;there-sultshowstllatastllesubjectfortlleclosureconstmction,tlleweightvalueofthehumanbeingis0.159,andtllenisthemostim-port肌tfactortoimpacttheriverclosure;moreover,theweightvaluesoft
6、hefactorsofconstructionmachinery,dumpingintensi-ty,insitumonitoring,overburdenonriverbed,riverchannelgradiem,diversioncapacityare0.126,0.118,O.048,0.071,0.071aIld0.042respectively,wllicharetllemajnfactorstoimpacttllemountainriverclosure,thust11eme踮urestoreducetlleclosuredimcultyare印pmpriatetobeconsi
7、deredfromtheaspectsofaUtllefactorsmentionedabove.Thestudyresultcanpr0Videascientificbasisforrealizingscien衄c蚰dsafeclosureofmountain—veLKeywords:riverclosure;closuredimculty;impactfactors;AnalyticHiera
此文档下载收益归作者所有