半坡桩锚固深度的研究

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1、西南交通大学硕士学位论文半坡桩锚固深度的研究姓名：叶鹏申请学位级别：硕士专业：岩土工程指导教师：周德培20090501西南交通大学硕士研究生学位论文第1I页AbstractHemi··slopepileistheanti·-slidepilewhichissettingonthecuttingslopeorsharpdeclineoftheroad(railwayroad)，theslipsurfaceisverysteep，especiallytheslipsurfacebeforepileiseasytof

2、ormtrianglebody,anchoragesegmentishardtomeettherequirementofhalf-infinitybody．Inrecentyears，astheresultofsiteconditions，topography，lithologyandotherfactorslimit，hemi—slopepilehasamoreandmoreapplicationinslopeprotectionandlandslidetreatmentengineering．LiRleth

3、eoreticalstudieshavebeendoneonthedesigningofhemi-slopepile．Inviewoftheresearchsituationathomeandabroad，itisanurgenttasktoresearchondesigntheoryofhemi—slopepile．Inthispaper，theinvestigationresearchofhemi—slopepileiscarriedout，therelevantinformationsarecollect

4、edextensively,includingthefailurecasesandsuccessfulengineerings．Onthisbasis，thedesignideaofthehemi—slopepilehasbeenbroughtout，namely,increasingthelengthofpileanchoragesegmenttomeettherequirementofthesemi-infinitybody，andtheexistingtheoriesofanti-slidepiledes

5、igncalculationshouldbeusedonhemi—slopepile．Thisarticlefocusesonstudingtheincreasevalueoftheanchoragesegment，andthehemi—slopepilecategory,theprincipleandlocationofsettingupthepilearealsodiscussedinaccordancewiththestratumconditions．Someconclusionsandresultsar

6、easfollows：(1)Onthebasisoftheanalysisofresearchdata，hemi—slopepileisclassifiedintofourcategoriesinaccordingwithstratumlithologyaroundtheanchoragesegment，pilestructure，andthefailuremodeofeachcategoryisdiscussed．(2)Bydiscussingseveralkeyproblemsabouthemi-slope

7、piledesign，fourprinciplesofsettingupthepileareputforward．Basedonthepilearrangingprinciples，twomethodstomeettherequirementofthesemi—infinitebodyareadvised．Oneisincreasingthelengthofanchoragesegmentandtheotherisdesigningaplatforminfrontofpilewithawidthequaling

8、totheslidingbedwidth．(3)Accordingtotheresultsofnumericalanalysis，Empiricalformulastodeterminetheincreasinglengthofanchoragesegmentarededuced，fromwhichthe西南交通大学硕士研究生学位论文第1ll页fittingformulaforcomp