y形沉管灌注樁擠土效應和沉降分析研究

1、分類號(中圖法)!墮壘UDC(DDC)壘2壘密級—五論文作者姓名貝耀王學號Q鮑Q壘Q2鯉8單位塑連太堂論文中文題名Y形速筐灌洼蕉搔敦虞獨沉隆盆壟丘硒究論文中文副題名玉論文；《文題名玨魚s星壘絲魚Q旦ih￡￡Q旦!Pi豎!i墮g曼i繭；￡!san亟5曼!!!蛩3曼塾!圣塾壘!)堡i墨Qf至：墨b亟衛(wèi)曼魚!婪b曼：墨i墮ki墮g曼魚曼!：i墮二墨i!叢乜i!曼論文英文副題名無論文語種生塞論文摘要語種蟲!甚論文頁數(shù)』生字數(shù)』三(萬)論文主題詞

2、Y顯掛!蘊筮廑!現(xiàn)揚試驗!路握!復盒地基!近隆!毗加廑之申請學位級別亟專業(yè)名稱蚩工程研究方向筮地基處堡指導教師姓名匿丞齷副熬攫導師單位洹瀅盍堂蚩王程班塑壓論文答辯日期2Q鯉生魚且!!目ABSTRAcTABSTRACTTheYshapedtube—sinkingcastin—situpilecanexertthepotentialcapacitybomofpileandsoilmorethanthetraditionaltubesinki

3、ngcastinsitupileofroundcross—sectionTherefore，it’sanewfoundationtreatmentworthtoextendAstheVsh印edpileisanewtechnique，theresearchinthisareaisjustatthestartingphase111ispaperaimsattheresearchofitsconstructiontechnicstechni

4、calcharacteristicsthemechanismtoreinforcethefoundationcompactingeffectsandsettlementcalculationbytheoreticalanalysisandfieldtestTheprimarycontentsarcasfollows：1TheconstructiontechnicsandsomeothercharacteristicsofYshapedp

5、ilearcintroduced，suchastechnicalproperties，thequalityinspectionandcontrol，theeconomiccomparisonwithotherpilesThefieldtestwhereYshapedpileisusedtotreatthesoftsoilfoundationofahi曲wayisalsointroduced2Thefieldtestofthecompac

6、tingeffectsofYshapedpileisoperatedInthetestthesoildisplacement，stresschangeandporewaterpressureareobservedandalsoanalyzed3BasedoHthetheoryofSagasetathedisplacementbypilesinkingcanbeobtainedThesoilsurfaceheavecausedbysink

7、ingofgrouppileswithYshapedcross—section，roundcrosssectionandsquarecross—sectioniscomparedConsideringthehorizontallimitequilibriumstateofsoilwhenpilesinkingandthecavityexpansiontheorythesoilstresschangeandtheporewaterpres

8、surecanalsobeobtained4ThesoilsubsidiarystresscausedbyloadofYshapedpileisdiscussedAndthesettlementcalculationmethodofYshapedpilecompositefoundationisimprovedKeywords：Yshapedpile；comparingeffects；fieldtest；embankment；compo