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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

Powered by China
China

海底隧道全线贯通 港珠澳大桥创下多少世界之最

2017-07-07 19:06:31   央广网

港珠澳大桥主体工程全线贯通

央广网北京7月7日消息(记者郭翔宇 周羽)据中国之声《新闻晚高峰》报道,历时七年建设的超级工程——港珠澳大桥今天(7日)迎来海底隧道贯通的重要节点,这也意味着港珠澳大桥桥、岛、隧主体工程已经实现贯通。

今天(7日)上午,随着港珠澳大桥管理局局长朱永灵宣布港珠澳大桥海底隧道贯通,历时7年建设的港珠澳大桥主体工程也正式宣告实现贯通。

作为目前世界上最长的沉管海底隧道,长达6.7公里的港珠澳大桥海底沉管隧道工程横跨伶仃洋底部,为繁忙的珠江口水路让出通途。同时,为了满足30万吨级货轮的通航需求,隧道管节最大埋深超过40米,也就是海床下20米、近10层楼的高度。一深一长,决定了它的建设难度。大桥设计与施工咨询岛隧组项目副经理李英表示,相比世界上已建成的同类型沉管隧道,港珠澳大桥海底隧道综合建设难度之高,世所罕见,港珠澳大桥海底隧道在超深、超长、超宽、超复杂的水利条件里面是综合难度最大的一个。

在建设过程当中,33节重达8万吨、长约180m的沉管管节无疑是这条海底巨龙能否顺利联通的关键。

在伶仃洋最繁忙的航道进行沉管管节浮运,还要在每天有超过4000艘船舶穿梭的复杂海域进行误差仅为“毫米级”的水下沉管管节安装,港珠澳大桥海底沉管对接作业被工程界誉为“在大风当中穿针眼”。岛隧工程副总工程师王强也坦言,对接过程十分曲折,“比如我们E15的时候,当时遭遇了回淤的影响,导致了我们沉管三次失误,最后安了三次才安上,这个过程非常折磨人的。”

为了保证沉管管节顺利安装,施工方配置了国内首条采用深水无人沉放系统的安装船,通过信息技术和遥控技术,实现管节姿态调整、轴线控制和精确对接。在实现33节沉管管节安装“滴水不漏”的同时,还总结出了在沉管对接领域独具特色的“中国工法”,港珠澳大桥岛隧工程副总经理尹海卿表示,形成了信息化,远程操作这样一套沉管安装技术,也积累了一批装备。

岛隧工程历经7年建设,最终实现贯通。岛隧工程副总工程师王强表示,这标志着我国在超大型沉管的安装技术已经走在世界前列。“外海超大型沉管的安装技术,在国际上只有少数几个国家能掌握。而我们现在成功地、安全地把它完成了,说明我们进入到了这个先进行列,站在了沉管隧道技术的新的高点。”

海底隧道贯通以后,还将有规模达70万平方米桥面、以及交通工程等环节需要施工,预计在年底将具备通车条件。港珠澳大桥通车后,珠海将成为唯一与港澳陆桥相连的城市,将从根本上改变珠海的产业、交通和城市发展格局,为珠海带来全新的战略发展机遇。香港与珠江西岸之间的车程,将从3小时缩短至30分钟。一桥飞架三地,将大大加速地区人才、物资、资金、信息的流动,粤港澳大湾区迈入大桥时代。

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

Powered by China
China

相关阅读

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

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/10000159/20170707/30938199.html
Server: cms-8-251
Date: 2024/11/16 01:44:30

Powered by China
China