文档介绍：港珠澳大桥英语演讲
港珠澳大桥英语演讲港珠澳大桥英语演讲Contents 1、Brief Introduction3、Two Artificial Islands2020/12/242
Contents
4、The Immersed Tube Tunnel
2、Features and Difficulties
5、The Significances
1、Brief Introduction
3、Two Artificial Islands
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3. 工程总体方案
The first major combined bridge and tunnel sea-crossing project in China.
Cost 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.
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1. Brief Introduction
Hong Kong–Zhuhai–Macau Bridge: the world`s longest sea-crossing bridge, one of the most challenging constructions of its kind undertaken in the world to date.
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Two artificial islands
An immersed tube tunnel
The Y-shaped bridge
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Total lenght:
kilometers
Underwater tunnel:
kilometers
Bridge over the sea:
23 kilometers
Macau Link Road
Zhuhai Link Road
Offshore Bridge-and-Tunnel
HK
Link Road
HK port
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life span of the bridge is set at 120 years.
reportedly can stand magnitude-8 earthquake, scale-16 typhoon as well as the collision with a 300,000-ton ship
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this project features a design-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 complicated navigation traffic conditions as the route crosses the busiest shipping area of the Lingding Sea.
and Difficulties
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Hong Kong-Zhuhai-Macao Bridge is the national key project featured with strategic significance, large involvement, highly difficult level of construction, long construction time, high requirement