港珠澳大桥英语演讲(课堂PPT)课件(PPT 15页).pptx
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1、Hong Kong-Zhuhai-Macao Bridgeto make the world convenient姓名日期1.第1页,共15页。Contents4、The Immersed Tube Tunnel2、Features and Difficulties5、The Significances 1、Brief Introduction3、Two Artificial Islands2.第2页,共15页。3.工程工程总体方案总体方案 The first major combined bridge and tunnel sea-crossing project in China.Cost
2、 approximately RMB 105 billion.Construction began in 15 December 2009 at Zhuhai.Will reduce travel time from Hong Kong to Macau or Zhuhai from over three hours to just half an hour.3.第3页,共15页。1.Brief IntroductionHong KongZhuhaiMacau Bridge:the worlds longest sea-crossing bridge,one of the most chall
3、enging constructions of its kind undertaken in the world to date.4.第4页,共15页。l Two artificial islandsl An immersed tube tunnell The Y-shaped bridge 1.Brief Introduction5.第5页,共15页。Total lenght:49.97 kilometersUnderwater tunnel:6.7 kilometers Bridge over the sea:23 kilometers Macau Link RoadZhuhai Link
4、 RoadOffshore Bridge-and-TunnelHKLink RoadHK port1.Brief Introduction6.第6页,共15页。1.the life span of the bridge is set at 120 years.2.It reportedly can stand magnitude-8 earthquake,scale-16 typhoon as well as the collision with a 300,000-ton ship1.Brief Introduction7.第7页,共15页。this project features a d
5、esign-and-build contract,coordination of the three regional governments in the construction and management,and close attention from the society.Moreover,there are environmental constraints as the alignment runs across the national conservation area for the Chinese white dolphins,as well as complicat
6、ed navigation traffic conditions as the route crosses the busiest shipping area of the Lingding Sea.2.Features and Difficulties8.第8页,共15页。Hong Kong-Zhuhai-Macao Bridge is the national key project featured with strategic significance,large involvement,highly difficult level of construction,long const
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