推荐频道 > 新闻推荐
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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

Powered by China
China

40多米高,连着桥墩转体!这不是科幻电影,是中国桥

2017-11-13 10:47:16   央视新闻

(原标题:厉害|40多米高,连着桥墩转体!这不是科幻电影,这是中国桥!)

11月7日下午,新建成昆铁路云南永仁至广通段的龙川江大桥桥墩墩中转体顺利完成,这也是我国铁路桥梁建设中的又一次新突破。

墩中转体施工法系国内首例

新建成昆铁路,是在既有成昆铁路的基础上,新建或增建二线,全长900公里,工程竣工后,成都至昆明有望6个多小时就能到达。

由于龙川江大桥要跨越每天通行50多对列车的成昆线,施工单位将桥体分为两段,分别平行建在现有铁路线的两侧,准备采取墩中转体的方式施工,这样的施工法,在国内还是第一次。

中铁十一局集团永广铁路指挥部指挥长刘祖彬:

如果在墩顶转体,由于桥墩较高,重量较大,它的墩高和重心都很难以控制;如果在墩顶转体,那么这个支座系统转换,包括施工工艺都非常复杂;所以我们通过优化方案,采用在墩中转体。

41.4米转体高度、7350吨单体转体重量创纪录

两段桥体的长度都是86米,单体重约7350吨。而墩中转体,就是桥体连带着下方5米长的墩身一起转动。

中铁十一局集团永广铁路指挥部指挥长刘祖彬:

一边是21度角,另一边是25度角,所以在转体过程中,7号墩要先转,另一边稍微延迟一下,等两个桥体基本同步后合龙。

下午4点30分,经过一个小时的转体,龙川江大桥顺利合龙,41.4米的大桥墩中转体高度,和7350吨的单体转体重量,刷新了两项世界纪录。

展开全文
责任编辑:刘敏丹 CN012
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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

Powered by China
China

热点新闻

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

Powered by China
China
点击查看更多
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/13000844/20171113/31657398.html
Server: cms-8-251
Date: 2024/04/25 23:32:10

Powered by China
China