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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

Powered by China
China

逆天!中国的大桥竟然会空中旋转...看得不敢闭上眼

2017-10-12 14:28:53   重庆晨报

由于新八达岭车站复杂的技术要求,技术创新成为了关键。眼前这个列车进站前山洞最大的隧道断面是32.7米,是全国目前最宽的隧道,施工难度非常之大。

中铁五局京张高铁长城站技术主管舒全满:这个对于我们的隧道施工来说是一个有待超越的数字,因为从我们的施工的角度来说,一般隧道的单拱均在14到16米之间。

京张高铁八达岭隧道的施工面临着“三座大山”,地质复杂,洞身要穿越两层断层,隧道的修建可谓困难重重。历经多次试验,他们创造性采取顶洞超前,分层下挖、预留核心、重点锁定、高性能混凝土一次浇筑成型的“品”字型分部挖掘法。

由于跨度大,隧道的掘进只能采取常规爆破的方法,俗称“放炮”。为了消除工程建设对文物和环境的破坏,及相邻洞室围岩及支护架构的损坏,工程采用了精准微损伤控制爆破的先进技术,已经成功爆破4500余次。目前八达岭隧道已同时展开8个工作面,每天近700人,24小时不间断作业。

谢崇志:目前我们的八达岭隧道掘进已经完成了5000米,完成了实际总工程量的43%左右,我们八达岭这个长城站预计在明年8月31日主体工程完工,八达岭隧道预计到明年的12月底实现贯通。

就在八达岭隧道长城站如火如荼建设的同时,另一个重要控制性工程京张高铁官厅湖大桥、土木特大桥建设也在紧锣密鼓地展开。

土木特大桥全长3503.48米,位于河北省怀来县土木镇和官厅水库之间,该大桥要依次跨越大秦线铁路、既有铁路京包线、京藏高速公路三条主要交通要道。其中大秦线铁路是世界上最繁忙的一条运营专线。

中铁大桥局京张高铁施工五标三工区工程部长何乔东:每天有160多个列车经过,为了降低对这个铁路运营的安全风险,我们采用吨顶转体的方式,把这个风险降到最低,桥的转体角度31度,转体重量5613吨,是我们现在修建京藏高铁前线最重的一个转体桥。

上一页2/6下一页
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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

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/945/20171012/31565582_2.html
Server: cms-8-251
Date: 2024/06/30 16:19:11

Powered by China
China