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《堆載作用下既有橋梁群樁基礎(chǔ)承載特性分析-(5738)》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、萬方數(shù)據(jù)西南交通大學(xué)碩士研究生學(xué)位論文第1I頁部結(jié)構(gòu)沉降變形自動化監(jiān)測系統(tǒng)，分析了各橋墩基礎(chǔ)沉降變形變化規(guī)律，評估了其服役狀態(tài)：為服務(wù)線路運(yùn)營安全發(fā)揮了重要的指導(dǎo)作用。關(guān)鍵詞：深厚軟土區(qū)；群樁基礎(chǔ)；堆載；承載力；固結(jié)萬方數(shù)據(jù)西南交通大學(xué)碩士研究生學(xué)位論文第1II頁AbstractWiththesustainabledevelopmentofrailway，highwayconstructionscaleinourcountryandtotalmileageofrailway，roadBridgesisgrowing，butduetothelimitationo
2、fvariousfactorssuchasconstructionconditionsandenvironment，naturalfillingsoilandtheconstructionofthediscardfillinglargeaccumulationaroundthebridgepilefoundationoftenappear．Therearetwoaspectsoftheresultsinfillingpileloadmainly．Ontheonehand，bridgepilefoundationledtobendingdeformation，w
3、hichwascausedbyhorizontaldisplacementofpiletosoil，resultingintheupperstructuredeviationthatCan’tevennormallywork；ontheotherhand，thePilemakesthefurtherconsolidationofsoilandcausesthesoilandpilebodyrelativedisplacementSOthatproducelargernegativefrictionresistance，andthusthebearingcapa
4、cityofpilefoundationandproduceunevensettlement．Asyoucarlsee，theadverseimpactoftheeffectonbridgepilefoundation，pileloadbearingcapacityanddeformationposeaseriousthreatonrailwaytransportationandpeople’Slifeandpropertysafety．Sotheexistingbridgepilegroupfoundationundertheinfluenceofpilel
5、oadbearingcharacteristicsanddeformationlaw，evaluatewhetheritisnecessarytomeettherequirementsofthedesignbearingcapacityanddeformation．Thesummarybasedontheanalysisoftheimpactinrecentyearsathomeandabroad，isdeducedbytheelastictheoryunderdifferentpileloadlevel，pileloaddistancetheoretical
6、calculationformulaofbearingcapacityofpilefoundation；Corresponding、析ththetheoreticalcalculation，theestablishmentofthree—dimensionalfiniteelementmodel，itisconcludedthatthesinglepileandthepilegroupwithheaploadlevelandthedistancechangeofpilefoundationbearingcapacityanddeformationlawofde
7、velopment；Onthisbasis，theanalysisofthepilefoundationofpileandsoilinthethreedimensionalfiniteelementconsolidation．forpilefoundationsettlementandinternalforcealong謝也thetimedevelopmentregularity，andcomparesthem嘶ththefieldmeasureddataanalysistoprovethevalidityoftheanalysis．themainresear
8、chresultsofthepaper
