基于統(tǒng)一強度理論的土壓力問題研究.pdf

1、長安大學(xué)碩士學(xué)位論文基于統(tǒng)一強度理論的土壓力問題研究姓名：林永亮申請學(xué)位級別：碩士專業(yè)：地質(zhì)工程指導(dǎo)教師：范文20040101StudyollEarthPreisureBasedoRtheURifiedStreBgthTheoryAbstractThedeterminationofforcesonstruetureswhichareconnectodtoearthnrl船$ISofparamountimportanceinapplied

2、GeoteclmicalFngineeringClassicalsoilpressla℃theoriesenunciatedbyCoulombandRankilaehavebeenwidelyusedforthesoilpressureanalysisandthedesignoftheretainingslxoetureswithinthevalidityoftheassumptionsofthesetheoriesThesolutio

3、nsbasedOntheMohrCoulombtheoryamnoteomideringinfluenceoftheintermediateprincipBlstress，buttheunifiedstrengththeorybyYuMaohongcansolvetheproblemwellTheunifiedstmagthtlacoryisanewkindofstrengththeorytohaveunifiedmechanicalm

4、odelandtheoreticalassumption，andasimple，linearandunifiedmathernatiealexpressionlldtlpt。dformanykindsofmaterialsThestudyonsoilpressurebasedOntheunifieds缸弧啦theoryiSratherli坩eSOaseriesofnewachievementsinthisaspecta佗acquired

5、TheshearstIengthunifiedformulaoftheunificxlstrengththeoryundertheconditionofplanestrainisintroducedintolimitequilibriumandthentheformulaofactiveearthpressureisdeducedforthewallmovementmodesThetraditionformulaispopularize

6、dbytheunifiedstrengththeoryAccordingtothetheoryofPrandle，theunifiedearthpressureformulaofretainingwallwithlogisticspiralsliding$Utfa∞isderivedThecalculationofnormalearthprcssltlreisbasedOilsemiinfiniteassumptiorl，sotheun

7、ifiedformulaoffinitesoilpressureisobtainedthroughthelimitanalysisofsoilmassIntheearthpressure∞r(nóng)etainingwallinfluencedbyanisotropicdamagetheunifiedequationsarcobtainedandtheyalesuitableforgeomaterialsPilelOWstructureisOne

8、ofthemostcomlnonl屯tainingstructttrcsfordeepexcavation，Inthelast，SOtheactiveq跚thpressureconsideringtheintermediateprincipalstressisdeducedthrou翻athethreelimemionalfailureofsoilmass，Keyword：earthpressure；unifiedsliengththe