支盘桩群桩在上拔荷载作用下的承载性状试验分析

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1、堑江工些态坐亟±堂僮途塞塞垂挺鞋蕉奄上这葱戴往用王鲢丞戴整丛达坠班塞(4)运用ABAQUS软件对支盘桩群桩在上拔荷载作用下的承载性状进行了数值模拟，得出了一些有意义的结论。关键词：支盘桩群桩，模型试验，上拔荷载，有限元，承载力Ill蜇堑兰些盔生亟±芏焦逾塞塞童挺叠蛙查土拔萄惑佳且工的丞越丝丛达验班宜ExperimentalStudyonBearingCapacityofDiskPileGroupUnderupliftLoadAbstractDiskpileisanewtypeofpilesdevelopedlately．Comparedwithnorma

2、lstraightpile，ithasadvantagesofstrongadaptability，highbearingcapacity，simplexoperationandsavingrawmaterials．Atpresentdiskpilehasbeenalreadyappliedinmanyactualengineeringinourcountryandachievedrelativelygoodresults．However，developedasanewtypeofpile，itsresearchesandengineeringappli

3、cationsunderupliftloadareless，especiallyinthecaseofdiskpilegroup．Inpracticalengineering，manypilefoundationistocomeintheformofpilegroup．Workingbehaviorofdiskpilegroupfoundationunderupliftloadingisdifferentfromsinglediskpilefoundation．Pilegroupbeartheforcethroughsoil—pileinteractio

4、n．Theprocessisrelmivelycomplex．Pilegroupunderuplittpressurebearstheforcebysoil-pileinteraction．Theprocessisrelmivelycomplexwithpilegroupeffectintoconsideration．Onthebasisofreadingandanalyzingtherelateddomesticandintemationalliterature，thepullingmechanismandbeatingcapacityofdiskpi

5、legrouparestudiedthroughsystematiclaboratorymodeltest．Itincludesthat：(1)Itintroducesthehistory，applicationstatus，existingmain逝堑王些盍堂亟±堂焦论塞童盘挺登挺查』拔萄越侄周工数丞羹性丛这坠硒宜problemsandmainresearchofdiskpile．(2)Itintroducesforcemechanismanddescribesthecalculationmethodsofbearingcapacityunderupl

6、iftload．(3)Bygroupsofmodeltest，itanalyzesworkingbehaviorofdiskpilegroupunderupliftload．Namely,itanalyzesbearingbehaviorofdiskpilegroupwithdifferentnumbers，differentspacingbetweenpilesandpilesunderdifferemsoilcharacteristicscorrespondingtothediameterofpilegroup．(4)Thefiniteelement

7、analysissoftwareABAQUSisappliedtosimulatethemodelpile，whichhelpstofurtherresearchonworkingpropertiesandbehaviorofthepile-soilinteractionofdiskpilegroupswithdifferentpilespacingunderupliftload．Keywords：diskpilegroup，modeltest，upliftload，finiteelementmethod，bearingcapacity．V逝江王些盔堂亟

8、±堂僮途塞童蕉蕉盛蕉在土拔萄惑篮且工殴丞堑世丛达墼班塞目录l绪论⋯⋯⋯⋯⋯⋯⋯⋯