紅層泥巖土及其改良土力學(xué)特性研究與在高速鐵路中的應(yīng)用.pdf

1、西南交通大學(xué)研究生學(xué)位論文紅層泥巖土及其改良土力學(xué)特性研究與在高速鐵路中的應(yīng)用年級(jí)二oo三級(jí)姓名申請(qǐng)學(xué)位級(jí)別專業(yè)指導(dǎo)教師王智猛工學(xué)碩士防災(zāi)減災(zāi)工程及防護(hù)工程蔣關(guān)魯教授二o0五年九月西南交通大學(xué)碩士研究生學(xué)位論文第Ⅱ頁(yè)AbstractSubgradestructure，asthemainstructureofrailwayconstruction，shouldhaveenoughcarryingcapacityanddeformation

2、resistancecapacitycallstandrepetitivestrengthofthevehicleloadwithoutstructuraldestructionandexcessivesedimentationanddeformation，meanwhile，itshouldhavepreferablepenetrationresistancecapacityandwaterstabilitytoreducewater

3、immersionandintenerateeffect，thereforemaintaininglongtimestabilityofthesubgradeThehighspeedrailwayhasstrictrequresforfillingInJapanandGermany，AspeciesandpartofBspeciesfillingareusedforfilingsubgradeinprincipleInChina，con

4、sideringthelackofhighqualityfillingitisdifficulttousehighqualityfillingforwholecircuitrySoitisimportantforrailwaystructioniⅡChinatoextendavaliblefillingsbyreserchCspeciesfillingsandit’simprovedfillingsRedbedsisaspecialfi

5、llingcontainedcoarsegrainedsoilIt’sgrainiseasytobeshatteredandthestrengthisverylowWheneveritcomesacrosswateritwillbecomeeasiertobepulverized，whichshowsitsdifferencefromthecommonfiningWeshouldavoidtousingthiskindoffilling

6、accordingtothecurrentcriterionHowevertheSui—YuexpressrailwayengineeringinprovinceofSichuanareamainlyconsistsofalotofredbedsIfitcallbeusedtofillthesubgrade，itwillsaveuPlargeofengineeringinvestmentsAtthesametime，itcanalsos

7、aveonthelandtobeusedtoconstructtherailwayInaddition，itcanprotectthesurroundingfrompollutionThispaperisaccomplishedunderthisbackgroundItresearchesmostlythephysicalandstrengthencharacteristicofredbedsscatterandit’simproved

8、scatterItmakespalticularstudyontheresultsoftestsbyperforminglaboratorytestsoftampingtriaxialshearCBR，swellpersent，andsoon，andmastersthestrenth，deformationandwaterstabilitycharacteristicsofredbedsscatterBasedontheresultso