大直徑外包砼管道滑道下水方法與力學(xué)特性數(shù)值模擬.pdf

1、華南理工大學(xué)碩士學(xué)位論文大直徑外包砼管道滑道下水方法與力學(xué)特性數(shù)值模擬姓名：張永強(qiáng)申請學(xué)位級別：碩士專業(yè)：建筑與土木工程指導(dǎo)教師：孫樹民吳何江20041205華南理I_人學(xué)工程碩七學(xué)位論文AbstractThedevelopmentofoffshoreandislandsresourcesisbecomemoreandmorepopularbecauseofthedevelopmentoftechnologyandshortofeart

2、hsresources.Transportingoffshoreoilgastomainlandandfleshwatertoislandisveryimportant.Otherwiseenvironmentprotectionismoreandmoreimportantandsewageofcitiesisdrainedtooffshorethroughpipelines.Inthefuturethelayingofbiglarge

3、diametersubmarinepipelinesismorepopular.ThehistoryoflayingsubmarinepipelinesiscomparativelyshortinChinaandthetotallengthofthepipelineslaidissmall.Mostsubmarinepipelinesarelaidbyconventionalpipelayingbarge.Incomparisonwit

4、hotherlayingmethodstheconventionalpipelayingbargehasobviousadvantagessuchasstabilityinwindandwaveextensiveutilizationandhighoperationefficiency.Buttheconventionalpipelayingbargehasitsdisadvantagethatiswiththeincreasingof

5、thediameterofthepipelinestheequipmentinpipelayingbargewillbecomemorecomplicatedmoreovertheinitialinvestmentinthemgrowsrapidly.Underthiscircumstancetheresearchonthemethodofpipelinelayingespeciallyonthemethodoflayingthoses

6、pecialpipelinesisveryimportant.Combiningwiththeprojectoflayinglargediameterconcretecoatingpipelinesthepaperoffersanspecialmethodonlayingthepipelineandstudiestheshapeandstressofthepipelinesindifferentconditions.Themainach

7、ievementofthedissertationincludefollowingareas:1)Methodoflaunchway.CombiningwiththedrainingpipelinesinTuenMenHongkongthepaperoffersamethodoflayingthepipelinesevery300mandevery300mpipelineismovedfromprefabricatingfieldtot

8、heseathroughlaunchway.Themethoduseslessequipmentandsavemuchmoney.2)Mechanicsanalysisofpipelines.UseANSYStoanalyzetheshapeandstressofthepipeline.TheresultsofANSYSaccordwellwiththedateofprojectresultswhichindicatesthatuseA