竖向荷载作用下桥梁桩基础沉降分析

《竖向荷载作用下桥梁桩基础沉降分析》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、西南交通大学硕士学位论文竖向荷载作用下桥梁桩基础沉降分析姓名：韩梅申请学位级别：硕士专业：岩土工程指导教师：马建林20070901酉直窑逼盍堂亟±硒宝生堂僮途塞蔓Ij互Abstract’Thehighspeedrunningof垤jnneedssmoothandstablefoundationoftrackundersurface．Itmeansthatahighquailtyofstab,时forthesettlementisneededforhigh-speedrailway．Itisth龇newd

2、esignstandardshasbeenappliedtotheJing—Jindedicatedpassengerline，toensurethetrainsafety,stabilityandpassengercomfortintunewiththedesignspeedonceopentotraffic．Espec湖IyInbridges。thenewdesignstandardsarestricterwithsettlementandpostconstructionsettlementofbd

3、dgaspier．So，itisnecessarytodevelopanahdc剃techniquebasedonreasonabletheoryandsimplicitytocalculatesettlementandpost-oompletionsettlement．Theresearchproductionmayofferusefulparameterandexpedenceindesignforthesimilarity．‘rhepaperIsbasedontheJjng—Jjndedicate

4、dpassengerJJne'strafficscientificresearchproject。Testingstudyonfoundationofbddgesandculvertsonsoftground。．1nthisthesis。thesettlementofgroup-pilefoundationhigh·speedrailwayonsoftsoilisstudiedbothbyfinIteelementmethodandbygraytheory．Thereareseveralmainwork

5、softheuitimatesettlement．Firstly,thatheslspresentsthedevelopmentofcalculatingsettlementofpilegroupfoundationatpresent．Secondly,ultimatesettlementofpilegroupfoundationiscalculatedwiththefinIteelementanalysisso,warepackage．PUⅨlS3Dfounda舡on．TheresultlScompa

6、redwithcurrentcdterion鹳well．ThirdMtheworkingrulesoftheultimatesettJement，theaxiaipressure．sidefrictionandtipresistanceofthepile，Ioadratiobycapandpier-subsoilaveragestressratiowhichareinfluencedbymanycomplicatedfactors，suchas，propertiesofsoil，load-level，s

7、pacingandlengthofpiles，compressibilitymodulusofsoilareanalyzedandsummarized．111esettlementpredictionofgroup-pilefoundationisstudiedbothbyPLA)(IS3Dfoundationandgraytheory．Ananalysisandcomputationonthe酉壶窑逼塞兰亟±亟鑫垒兰筐诠塞簋!!!耍basisofBlot‘SConsolidationTheorybyu

8、singthefiniteelementmethodintherelationshipbetweensettlementandtimevaryingandIoediScomparedwithactualdata．Theconclusionshowsthatthetwosettlementsagreewitheachotherverymuch,SO．themethodintroducedlSrationalandpossible．Furthe