液壓擠擴(kuò)支盤樁豎向抗拔承載性能初步研究

1、北京工業(yè)大學(xué)碩士學(xué)位論文液壓擠擴(kuò)支盤樁豎向抗拔承載性能初步研究姓名：劉春陽申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：張延慶20070601ABSTRACTCastinplacepileswithexpandedbranchesorplatesbasedoncommonconcreteboredpilesaleanewtypeofpilesfoundationwhichhavethespecialtyofhighverticallybea

2、ringcapacityandhavebeenmarkedbotheconomicandsocialbenefitsEspeciallyintheresistdrawload，itindicatesabroaderapplicationscopeHoweverbecauseofthepoorapplicationofcastinplacepilesinthepracticesalmostalltheexperimentsalebased

3、onmodelingexperimentsItisdifficulttevealtruestateofcastinplacepilesinresistingloadSoitisnecessarytodolotsofcast—in—placepilespracticalexperimentsAlsoitisnecessaryconditionthatcastinplacepilestechnologygrownupandspreadine

4、ngineeringWediscusstheco咖ctionprocessoftheDXpileatfirstAndthenItellpeoplethemodelofcalculatetheDXpile’Scapacityofrcsitingtheverticalpull—forceWeCanputthecalculatingformulaintoFORTRANprocedureandcomparetheresultswhichwege

5、tfromtheprocedurewiththeexperimentalresultsthenwegettheaccuracyofthemodelandoftheformulaAtlastwecanusethefiniteelementanalysissoftwareANSYStoanalysetheinfluenceofthedifferentlocationandangleofthechecktothecapactityofrosi

6、tingtheverticalpull—forceoftheDXpileAndwecanalsoanalysethedifferencecapacitybetweentheDXpileandthenormalaralghtpileAttheendofthepaperIoffersomeunresolvedproblemsandgivesomepropectsoftheDXpileKeyword：DXpiles，calculatingmo