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1、SendOrdersforReprintstoreprints@benthamscience.aeTheOpenCivilEngineeringJournal,2015,9,463-470463OpenAccessImpactAnalysisofSupportStructureofUnsymmetricalLoadingDeepFoundationPitAdjoiningHighwayDonglinWang*andLeiWangSchoolofCivilEngineering,AnhuiJianzhuUniversity,Hefei,Anhui,230601,ChinaAbstract:The
2、airshaftdeepfoundationpit6isinfluencedbysubgradeunbalanceloadingofhighway312,specificallyitsdeephorizontaldisplacementofsupportingpilesandsubgradesettlementofexpressway312underunsymmetricalloadeffect.Thispapercarriesoutconstructionmonitoringandnumericalsimulationanalysisandgivesadetailedstudyonthein
3、fluencedfactorsofsupportstructuredeformation.Calculationresultsshowthatsubgradeunsymmetricalloadhasagreatinfluenceondeephorizontaldeformationofsupportingpiles.Themaximumhorizontaldisplacementatthebiassideisaboutthreetimesmorethannon-biasside’s;whenthedistanceofsubgradetofoundationpitisthesameasthede
4、pthofexcavation,theinfluenceofsubgradeonpitcanbeignored;asthecohesionandinternalfrictionangleincreases,thehorizontaldisplacementoffenderpilesdecreases.However,enlargingtheembeddeddepthofsupportingpileshasnosignificantinfluenceonthestabilityoffoundationpit.Keywords:Unsymmetricalloadedfoundationpit,in
5、-situmonitoring,numericalsimulation,horizontaldisplacement.1.INTRODUCTIONpressureofsubgradeofnationalhighway312,andtheeffectofthisbiasloadforexcavationcannotbeignored.ThisIntheprocessoftheexcavationofdeepfoundationpit,papercarriesoutconstructivemonitoringonthesupportsoilstresschanges,thusgroundsurfa
6、cesettlement,buildingstructuredeformationduringitsexcavationandsubgradesettlementandthesurroundingpipelinedeformationcomesdeformationclosetonationalhighway312,simulatingintobeing[1-3].Deepfoundationpitsofsubwaystationareanalyzesthesupportingpiledeformationbyusingfinitegenerallylocatedatthecrowdedurb
7、ancentralareas,theelementanalysis.AccordingtosoftwareMidaswiththeconstructionisfacedwithvariouschallengesastheactualexcavationconditions,andmakesdetailedanalysisonsurroundinggeologyandenvironmentalcon
