地鐵遂道抗震設(shè)計(jì)和人工神經(jīng)網(wǎng)絡(luò).pdf

1、同濟(jì)大學(xué)博士學(xué)位論文地鐵遂道抗震設(shè)計(jì)和人工神經(jīng)網(wǎng)絡(luò)姓名：孫海濤申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：馮紫良19991001AbstractInrecentyears，subwayhasbeenusedtoimprove訂瓶cconditionsinsomebigcitiessuchasShanghai，GuangzhouetcAssubwayisailimportant陸lineitsseismicresponsemustbecon

2、sideredindesignworkFromthis，dynamicFEMisdevelopedconsideringthecharacteristicsofshieldtunnelAlso，artificialneuralnetworkmethodisin乜oducedtOshieldtunnelseismicdesignasamodellingtoolinthisthesisTosimulateshieldtunnelwithFE

3、MvariousstressstrainmodelsandelementmodelsRreadoptedandcoupledtowarddifferentpartsofSoUtunnelsystemForexampleplaneelement，beamelementandsegmentjointelementrepresentssoil，liningandsegmentjointoftunnelrespectivelyTheⅨ慨ofSo

4、ilandliningissimulatedwithelasticplasticmodelandlinearelasticmodelBasedonabovethedynamicandstaticFEMprogramispresentedIntheprogramthestresschangeofsurroundingmasscausedbyexcavatingopeningisconsideredDoublyasymptoticmuldq

5、irectiunaltransmittingboundaryisalsoadoptedtoeliminatetheundesirableeffectofsimplificationfrominfinitefieldproblemtofinitefieldprobleminseismicanalysisofshieldtunnelTheseismicresponseofShanghaime廿olineNo2districttunnelis

6、calculatedusingthedevelopedEEIVlmodelTheinfluenceofsomeparameterstotheresponseofshieldtunnelisanalyzedTheresultsshowthattheFEMmodelisapplicable，whichcsnbethebasisofseismicdesignandsafetyevaluationofsubwaytunnelThethesisp

7、rovidesamodellingmethodindetailforproblemsingeotechnicalengineeringwithmificialnoJlalnetworksOnthebasisofthismethodallequivalentstaticcoefficientANNmodelises扭blishedUsingthemodelanequivalentstaticcoefficientdatabaseisfor