欢迎来到天天文库
浏览记录
ID:28355201
大小:14.31 MB
页数:110页
时间:2018-12-09
《层状土壤指流及污染物优先迁移特性的试验分析》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、Abst「aCtTitle:EXPERIMENTALSTUDYONCHARACTERISTICSOFFINGERFLOWANDPOLLUTANTPR10ROTYTRANSPORTINLAYERDESOILMajor:Agrieultural5011andw自terEngineeringName:RuiGAOSignature:SuPervisor:ProLJianfengZHANGSignature:AbstraetTheeharaeteristiesofthenorthwestloess15n
2、on一homogeneous耐sotroPieandobviouslyIayer-structured.ThesecharacteristiesareoeeurredthebasisofPreferentialflow.TheresultsshowthatalargenumberofPollutanttransPortthroughPreferentialfloweausedbydeeP5011andundergroundwaterPollution.Inordertogettoknowthei
3、nflueneerouteofPreferentialflowhasbringforthetransPortionofwaterandPollutant,basedonNationalNaturalSeienceFundProjeet”ExPerimentalstudyontheeharacterofstructuredloessPollutant,5PreferentialtransPortion,,,wedidnon一saturationlayerstrUetured50115wateri心
4、ltratingexPerimenttostudythefingerfiowandNO3一NtransPortintheProcessofwaterinfiltration,usingxi,an,5loessandsand.w己diseusseddifferentPhysicalProPertiesof50111心ueneeonsimulatingfingerflowandthefingerflow,5idueneeonthetransPortionofNO3一Nin50115.Also,wer
5、evealedthebasieonfingerflowinlayerstruetureof50115andthetransPortionofNO3一Nin50115.TheexPerimentofresultssuPPlyneeessaryseientifiebasisforthefurtherstudyoffingerflow.BasedoneXtensiveon如gerflowandtransPortofNO3一Nresearchaehievementsfromdomestieandabro
6、ad,eaJ汀yingonsomeexPerimentindoorsoninteriorsystemandusingamathmodeltosimulate,wegetsomeachievementasfollows:1.W亡ProPosedthemethodforsimulatingthePhenomenonoffingerflowinLayeredstrUetUreof5011,that15,installingthefingerflowofmoldinexPerimentandsimula
7、tingfmgerflowwithsandofdifl七renidianleters.2.hitheProeessofwaterinfiltrating,ifthe5011,5PhysiealProPerty15different,theaffeetingfactor15alsodifferentwhensimulatingfingerflow.w七useveloeityoffingerflowtoillustratedeharaeteroffingerflow.Iftheafl七etingfa
8、etorwhensimulatingfingerflow15different,theveloeityoffingerflowwillalsobedifferent.TheveloeityoffingerflowdeveloPsslowerifthethieknessoftheuPPer-layer5011aremorelargerandmedianPartielesizeofmatrix111夕、西安理工大学硕士学位论文sandaremorelarger.Theveloeityof伽gerfl
此文档下载收益归作者所有