復(fù)合土工膜選型及缺陷滲漏量試驗研究.pdf

1、河海大學(xué)碩士學(xué)位論文復(fù)合土工膜選型及缺陷滲漏量試驗研究姓名：劉鳳茹申請學(xué)位級別：碩士專業(yè)：水工結(jié)構(gòu)工程指導(dǎo)教師：沈長松20040301Abstract：GeomembranesarebecomingthemostcommonlymaterialinthefiledofseepagecontrolinourcountryAtthesanletime，manytechnicalproblemsneedsolvingurgentlyForex

2、ample，thecategoryofthegeomembranesisnumerousandtherearestillalotofshortagehowtoselectgeomembranesinrequesttoexertitsphysicsmechanicscharacteristicwellTheresearchisstillanewlessonofthegeomembranes，therearealotworrybecause

3、geomembranes’physicalandchemiccharacteristicCan’tstillbecompletelyaffirmedinengineeringfieldTheresearchresultsofgeomembranes’functionarefewEspeciallytheworkofcalculatingleakageduetOdefectsingeomembranesjusthasstartedsinc

4、ethemiddleof1980’SAllaboutaffectthepopularizationandapplicationofgeomembranesCombiningtheorywithexperimenttogethertheengineeringexamplethatcompositegeomembranesareusedtoactasanti—seepagematerialareenumeratedinthepaper1、I

5、ntroducingthespeciesandcharacteristicsofthegeomembranesandintroducingthegeomembranes’applicationinhydraulicengineerings2、ThemethodshowtOselectgeomembranearesummarized。Throughtheexperiment，afewcompositegeomembranesphysica

6、lcharacteristicandpullandstretchcharacteristicsareconformedTheprocessthatcompositegeomembraneisselectedbyfiniteelementmethodisintroducedindetail3、Afewexperimentsofinteractionofcompositeandsupportinglayermaterialareintrod

7、ucedAinstrumentisdesignedbyoneselftotestthefrictionalbehaviourofcompositegeomembranesandsupportinglayermaterialThroughanalyzingthetest，thefrictionalregulationofcompositegeomembranesandsupportinglayermaterialareacquiredTh

8、estudywillofferthereferencebasisforthedesignofgeomembranes4、Enumeratingthecircumstanceofpermeametertestsaboutgeomembranesathomeandabroadandsummarizingtheruleofitbycomparingtheacquireddata5、Aseepageinstrumentisdesignedtot

9、esttheleakageofthedefectedcompositegeomembranesThroughthetestafewdataofleakageduetodefectsincompositegeomembranesunderdifferentapertureofdamnification，differentwaterpressureandtWOkindsofsupportinglayermaterialaregainedan

10、dtheprimaryfactorthatinfluencesthemagnitudeofleakageduetOdefectsincompositegeomembranesareanalysed6、HandlingthetestingdatawithmathematicalmethodandestablishingmathematicalexperientialmodelsInthispaperafewmethodscalculati