港珠澳大桥英语演讲ppt

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1、HongKong-Zhuhai-MacaoBridgetomaketheworldconvenientSuperEngineering姓名日期Contents4、TheImmersedTubeTunnel2、FeaturesandDifficulties5、TheSignificances1、BriefIntroduction3、TwoArtificialIslands3.工程总体方案Thefirstmajorcombinedbridgeandtunnelsea-crossingprojectinChina.CostapproximatelyRMB105billion.Construc

2、tionbeganin15December2009atZhuhai.WillreducetraveltimefromHongKongtoMacauorZhuhaifromoverthreehourstojusthalfanhour.1.BriefIntroductionHongKong–Zhuhai–MacauBridge:theworld`slongestsea-crossingbridge,oneofthemostchallengingconstructionsofitskindundertakenintheworldtodate.TwoartificialislandsAnimm

3、ersedtubetunnelTheY-shapedbridge1.BriefIntroductionTotallenght:49.97kilometersUnderwatertunnel:6.7kilometersBridgeoverthesea:23kilometersMacauLinkRoadZhuhaiLinkRoadOffshoreBridge-and-TunnelHKLinkRoadHKport1.BriefIntroduction1.thelifespanofthebridgeissetat120years.2.Itreportedlycanstandmagnitude-

4、8earthquake,scale-16typhoonaswellasthecollisionwitha300,000-tonship1.BriefIntroductionthisprojectfeaturesadesign-and-buildcontract,coordinationofthethreeregionalgovernmentsintheconstructionandmanagement,andcloseattentionfromthesociety.Moreover,thereareenvironmentalconstraintsasthealignmentrunsac

5、rossthenationalconservationareafortheChinesewhitedolphins,aswellascomplicatednavigationtrafficconditionsastheroutecrossesthebusiestshippingareaoftheLingdingSea.2.FeaturesandDifficultiesHongKong-Zhuhai-MacaoBridgeisthenationalkeyprojectfeaturedwithstrategicsignificance,largeinvolvement,highlydiff

6、icultlevelofconstruction,longconstructiontime,highrequirementontechnicaldesignandenvironmentalprotection,manyparticipantparties,complexmanagementandcoordination.2.FeaturesandDifficulties3.TwoArtificialIslandstheWestArtificialIslandtheEastArtificialIslandTheEastIslandhas59roundsteelcylinders圆钢筒.T

7、heWestIslandhas61roundsteelcylinders.Thediameterofasinglecylinderis22.0m,andthecylinderwallis16mmthick.Theheightofroundsteelcylinderis40.5mto50.5m.Theroundsteelcylinderweighs445tto507t.3.TwoArtificialIslands4.TheImmersedTube