26217.拖曳錨安裝纜繩在海床土中的嵌入特性

1、天津大學(xué)碩士學(xué)位論文拖曳錨安裝纜繩在海床土中的嵌入特性姓名：高濤申請學(xué)位級別：碩士專業(yè)：港口、海岸及近海工程指導(dǎo)教師：劉海笑201112ABSTRACTAstheexploitationofthemarinehydrocarbonresourceextendingtodeepandultradeepwaters，new—typedraganchorsarewidelyusedindeepwaterengineeringExactlypo

2、sitioningofdraganchorsisakeyprobleminthefieldapplication，andiscloselyrelatedtotheembedmentcharacteristicsoftheinstallationlineStudyontheembedmentcharacteristicsofthedraglineissignificanttotheexactlypositioningandoptimiza

3、tionofinsmllationtechniquesfordraganchorsTheanchorisgraduallypenetratedintosoilsduetothedragforcetransmittedfromtheinstallationline；thevariationalpropertyofthelengthoftheembeddedlineisthemainembedmentcharacteristicHerein

4、，basedonthepre—existingexpressionofthelengthoftheembeddedline，takingintoaccountthemodelforkinematictrajectoryofdraganchors，theequationsandtheirsimplificationsofthelengthoftheembeddedlineaswellassomedeductionarederivedfor

5、bothcohesiveandnoncohesivesoilsAparametricanalysisisperformedsystematicallytostudytheeffectsofseveralkeyparameters，andtheprecisionofthesimplificationsischeckedrespectivelyConsideringthediameterofthedragline，thedifference

6、betweenembedmentpointsonthetopandbottomfacesofthelineareproposedandthetransformationmethodbetweenthemarederivedAvisualtrackingtechniqueisadoptedtogetthevariationsofthelengthoftheembeddedlinebytrackingthemovementoftheembe

7、dmentpointonthetopfaceandtransformationtotheembedmentpointonthebottomfaceoftheline，andmodelexperimentsareperformedasaverificationoftheanalyticalmodelTheresultindicatesthattheanalyticalmodelcanforecastthevariationsofthele