灌注樁后壓漿技術在細粒土中的加固機理和應用研究.pdf

1、同濟大學碩士學位論文灌注樁后壓漿技術在細粒土中的加固機理和應用研究姓名：王明太申請學位級別：碩士專業(yè)：土木工程指導教師：李建中楊新洲20040801堡壟些亙里塹墊查壟塑墊圭主箜墊圈墊堡塑窒旦型壅!塑莖!AbstractBoredpileisthebasicandpopulartechniqueusedforbridgeconstruction，Accordingwiththeincreasingspandiameterofthebrid

2、ge，thepilelengthanddiameterofcomlllonpouringpilehavetakenthetrendofincreasingIthasbecomeanimportantissuehowtoincreasethebeatingcapacityofboredpile，especiallythebearingcapacitypervolumeoftheconcrete，inorderteducethecostan

3、dinvestment，andshortentheconstructionperiodNowthelaterpressuregroutingtechniquehasbeenwidelyusedinthefieldofhouseconstruction，butitsapplicationinbridgeengineeringisstillbeingtestedandresearchedThefinishedpressuregrouting

4、constructionshowsthatmostbearinglayerissand—gravellayerFormostplainareas，thefreesandisusedasbearinglayerThetechniqueoflaterpressuregroutingintheseareasremainsaproblemanditseffectivenessandreliabilityneedfurtherstudiedThe

5、principleandbearingperformanceoflaterpressuregroutingpouringpileareanalyzedinthispaperTakinganexistingprojectofHebeiprovinceasanexample，inthesanleconstructionsiteusingfmesandasbearinglayer誦ththesamelengthofpilethestaticl

6、oadingtestandthepiles岫stestarerespectivelyperformedonthecommonpouringpileandthelaterpressuregroutingpoutingpileBasedonthetestresults，thebeatingreactionandperformanceoftwopilesalecomparedandanalyzedThetestpiledistribution

7、sprincipleofpileaxialstressandthepilesidefrictionalongwimthelengtharealsoanalyzedTheworkingprincipleandtechniquecoefficientsofthelaterpressuregroutingtoincreasethebearingcapacityofpouringpilearediscussedaswellKeywords：bo