碎石樁復(fù)合地基承載力與沉降計(jì)算及其工程應(yīng)用.pdf

1、中山大學(xué)碩士學(xué)位論文碎石樁復(fù)合地基承載力與沉降計(jì)算及其工程應(yīng)用姓名：何興申請學(xué)位級別：碩士專業(yè)：構(gòu)造地質(zhì)學(xué)指導(dǎo)教師：周翠英20040603Calculationsofbearingcapacityandsettlementofstonecolumnscompositefoundationanditsappficafiontoengineering5妯mcturalgeologyName：)(ingHeSupervisor：Cuiying

2、ZhouAbstractCalculationofbearingcapacityandsettlementofstonecolumnscompositefoundationisoneofthehotspotsingeotechnicalengineeringatpresentThecomplexitycharacteristicsofsoilssuchasdiscontinuityheterogeneityanisotropyuncer

3、taintyandtheexternalloads’transfermechanismandpartaldngleadtosomedifficultofcalculationanddistributionofstressfieldsanddisplacementfieldsforthestonecolumnscompositefoundationTherefore，weshouldpaymoreattentiont0thecalcula

4、tionmethodsandmodelsInthepaperweproposedtwonewmodelsforthecalculationofbearingcapacityandsettlementbysystematicallysummarizingtheresearchbackgroundatpresentThecontentofthispapercanbeconcludedasfourparts：(1)summarizescalc

5、ulationmethodsofstonecolumnscompositefoundation’Sbearingcapacityandsettlement；(2)basedonformerresearch，byconnectingwithengineeringpractice，Wediscusssomefeaturesofworkingmechanism，stressfield’Sdistributionandfailuremodeso

6、fstonecolumns；andconsiderverticalstressanddeadweightofsoilsthatisignoredbyBrauns；andthen，webuildabearingcapacitymodelanddeduceacalculationformulaofstonecolumns’ultimatebearingcapacityonthebasisoftympanitesfailuremodebyco

7、nsideringtheforcesofsoilsandstonecolumnsasaspatialproblem；(3)fortheultimatesettlementcalculationwedividedthesettlementintothreepartswhichincludereinforcedareawithtympanites，reinforcedareawithnontympanitesandunderlayerofs

8、tonecolumnscompositefoundationsForthepurposeofcalculatingthesettlementofthethreeparts，webuildanewcalculationmodelforthefirstpartbasedonelastictheory；andadaptcompositemodulemethodforthesecondpartandusethelayerwisesummatio

9、nmethodbyDesignCodeforBuildingFoundationforthethirdpart；(4)putcalculationmodelsofbearingcapacityandultimatesettlementintopractice，theresultsindicatedthatthecalculateddataarecoincidedwellwithmonitoredones；andmoreovertheya

10、北moreexactlyandclosertotheactualdatat11ananyothermethodsAtthesanletimetheresearchreSUItsshoWthatthemethodsthatweproposedinthispaperhaveacertainlypracticalvalue，andCanbewidelyusedinsimilarprojectsKeywords：stonecolumnscomp