纤维加筋土的强度特性及在填方路堤中的应用研究

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1、重庆交通大学硕士学位论文纤维加筋土的强度特性及在填方路堤中的应用研究姓名：荆林立申请学位级别：硕士专业：道路与铁道工程指导教师：梁波20090401ABSTRACTrnlereinforcementapplicationofgeosyntheticsinhighembankmentcallpreventlocaloversizesettlementtosomeextend，controllateraldisplacementinslopeofembankment，decreaseoutwardextrusionstressoffoundation，anden

2、hanceintegralstrengthandstabilityofembankment．Texsolisoneofreinforcedearth，whichhasitsuniqueperformanceandfunction．Texsolisathree··dimensionalhomogeneousandisotropicnew·-stylemultiplematerialandreinforcedtechnology．Basedonaseriesoftestsoftexsol，thispaperanalysisthestrengthpropertie

3、softhetexsolinmoredeepdegree，concludessomefavorableconsecutionswiththeresultsofcentrifugalmodeltestandnumericalsimulation,providesthebasethatthetechnologyoftexsolwillwildlyappliedinChina．T11ispaperclassesthedevelopmentofgeosyntheticsandreinforcedearth，bringsforwardtheresearchfulcon

4、tentsinallusiontotheapplicationsofreinforcedearth．ThepapersummarizesthestructuralformsandstabilityanalysisofthehiIghembankment，andsummarizesthelimitequilibriummethodofreinforcedembankmentcomparedwiththeembankment．T11ispaperconsummatesthestabilitytheory．Basedonthelargenumbersoftriax

5、ialtestsofnativeearthandtexsol，discussesthefactors’influenceonthestabilityoftexsol，whichincludethelengths，temperofthefibre，and。concludessomeprofitableconsecutionsinpractice．Acentrifugetestingisundertakentoinvestigatetheruleofthedeformationandearthpressureoftheembankmentunderdiffere

6、ntconditions，tofindouttheeffectofthefibreembeddedintheembankmentbycontrastingthepressuretransferanddeformationbetweenthereinforcedembankmentandtheunreinforcedone．Theseworksarefoundationsoftheresearchonthemechanismoftheinteractionbetweensoilandfibre．BasedonthefiniteelementANSYS，nume

7、ricalsimulationiSusedtocalculatethenatureearthembankmentandreinforeedembankment．Thedataofnumericalsimulationiscomparedtothatofthecentrifugalmodeltest．Comparingtheresults，theresultishighlyaccurateandprovessomereferencedworthinessinpractice．KEYWORDS：texsol；highembankment；triaxialcomp

8、ressiontest；centrifugalmod