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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

Powered by China
China

新修的防撞墩穿上铁“马甲”

2017-08-09 15:12:46   中国青年网

工人正在防撞墩上挂网

旧隔离带正在拆除

工人正在防撞墩上挂网

旧隔离带正在拆除

昨晚记者再次赶赴东三环大修现场,连夜采访环路大修工程的最新进展。记者发现,车辆防撞墩的修复工作其实更为繁琐,往往工程是以防撞墩的修复开始,最后又以这类作业结束。此次大修中记者了解到,市政路桥养护集团首次采用了新工艺,在节省了大量人力、时间的基础上,新修的防撞墩也更加耐用美观了。

防撞墩“穿锁甲”

今天凌晨1点多,记者来到国贸桥,主路中间的旧隔离带正在由工程车辆进行拆除。匝道的防撞墩前,三两一组的施工人员正在进行防撞墩修复作业,他们的作业内容引起了记者的好奇。

经过前期的水铣,防撞墩表层已经不见了,露出了混凝土和钢筋结构,现场施工人员正在利用工具,将一张张“网”固定在混凝土面上。这些“网”是由钢丝编织而成,结实却又不失弹性,远远看去,铺满了金属网的防撞墩,如同穿上了锁甲一般,正在施工的师傅们告诉记者,这样的工艺是第一次用在修复防撞墩上。

项目总工王瑞生告诉记者,目前养护集团标段内,几乎各桥区的防撞墩都在进行耐久性加固作业,施工人员挂在防撞墩上的“网”,名为高强钢丝绳网片。以往在实施这类工程时发现,桥梁防撞墩钢筋保护层不足、混凝土松散裂化是其中一大问题,加入网片是解决这个问题的“法宝”之一。

新修防撞墩“原汁原味”

凌晨2时许,已经挂好钢丝绳网的防撞墩进入了下一步修复流程。施工人员开始利用粗软管,向防撞墩表面喷射砂浆,砂浆均匀地布满了防撞墩表面,刚刚铺设的钢丝绳网,被完全覆盖。

王瑞生说,这种高强度聚合物砂浆,强度提升快是其一大特点。虽然完全达到工程要求强度,还要等一段时间,但是几个小时内,砂浆就会变得非常坚固。这样的工艺,同样是第一次运用在防撞墩的修复上。

砂浆涂好以后,现场施工人员开始利用模具,在防撞墩表面塑形。每个防撞墩的表面,都从平面变成了完全一致的弧形,施工人员的动作十分仔细,如雕塑师一般。

记者从现场了解到,这些防撞墩原本是有着弧形迎车面的,在前期的水铣作业中,表面的松散混凝土便会脱落,受到融雪剂或其他物质的影响,越靠近下方,松散混凝土越多,水铣后的防撞墩便失去了原本的弧面形状,后期整体塑形,就是为了恢复防撞墩原貌。施工人员说,整体塑形出来的效果会更加整齐美观,后期还要再铺防水涂层,外观效果会有更大的提升。

上一页1/2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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

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/11038989/20170809/31061745.html
Server: cms-8-252
Date: 2024/06/23 10:21:55

Powered by China
China