新闻 > 国内
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China

港珠澳大桥进行海底隧道最终接头正式吊装

2017-05-02 15:35:33   央广网

央广网珠海5月2日消息(记者郭翔宇)据中国之声《央广新闻》报道,今天上午,港珠澳大桥进行海底隧道最终接头正式吊装,在最终接头对接成功并完成焊接等后续工作之后,全长5664米的海底沉管隧道将实现合龙。

最终接头是港珠澳大桥沉管隧道贯通的控制性枢纽,也是全线合龙的最后一环。港珠澳大桥管理局总工办主任陈越用“行百里路半九十”来形容最终接头的重要性,“快六年了,走到今天,整个隧道就差这几米最终接头,如果这个做不成,整个隧道就没办法投入使用。”

与其他沉管管节不同,最终接头构件采用“三明治”钢壳混凝土结构,整体呈楔形,高11.4米,底板长9.6米,重达6000吨。这样一个“大家伙”入水后还要受洋流、浮力等影响,姿态会发生变化。为了保证吊装完成后顺利止水,高低差控制在15mm以内。并且必须一次成功。

陈越介绍:“水的横流对最终接头的影响就更加敏感,它很容易摆,到了这个季节径向流量会加大,往年这个时候已经要达到每秒2万立方以上,因此误差无论横向也好纵向也好,争取控制在5公分以内。”

完成这样一次“毫米级”水下对接大任的吊装船——“振华30”同样来路不小。作为目前世界上最大的的单臂全回旋起重船,振华-30拥有12000吨的单臂起重能力,相当于可以同时吊起45架空客A380飞机。港珠澳大桥副总工程师钟辉虹透露,在最终接头成功吊装焊接到位之后,标志着港珠澳大桥主体工程全线贯通,“把最终接头安装到位,两个沉管实现钢接以后,港珠澳大桥29.6公里的桥、岛、隧主体结构实现结构的贯通。”

责任编辑:李皓 CN002
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China

相关阅读

港珠澳大桥22.9公里主桥27日贯通 能抗16级台风

2016-09-27 09:36:46

港珠澳大桥拱北隧道即将全隧贯通(图)

2017-04-03 13:52:41

请总理放心! 港珠澳大桥再次取得重大进展!

2017-04-11 00:05:26

港珠澳大桥长12公里的香港接线本月内将全线贯通

2017-04-13 21:50:42
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/945/20170502/30479961.html
Server: cms-8-252
Date: 2024/11/24 14:48:10

Powered by China
China