久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

Global EditionASIA 中文雙語Fran?ais
Business
Home / Business / Companies

CREC4 makes strides in super bridge project

By MA CHENGUANG and ZHUANG QIANGE | China Daily | Updated: 2022-03-17 09:48
Share
Share - WeChat
Builders from China Railway No 4 Engineering Group Co Ltd work on a main pier of Tuojiang super bridge in Sichuan province on Sunday, which is part of the Beijing-Kunming High-Speed Railway Corridor. [Photo provided to China Daily]

Builders of the 2,440-kilometer Beijing-Kunming High-Speed Railway Corridor, one of the nation's "eight verticals and eight horizontals" in the HSR network, made a new breakthrough after they finished cement pouring on top of a main pier of the Tuojiang super bridge in Sichuan province.

The Tuojiang Super Bridge will stand on two main piers, No 40 and No 41, with a total length of 2,613.3 meters. Cement pouring was completed on Sunday for the two blocks on the No 41 pier on the south bank of Tuojiang River, an upper tributary of the Yangtze River, the country's longest river.

After more than 10 hours of intense work, builders from China Railway No 4 Engineering Group Co Ltd (CREC4) celebrated their successful work on the two blocks, ushering in the official construction of the overhanging beam of the super bridge.

CREC4 staffer Zhang Furong said the main span will be composed of three sections of 124 meters north of the No 40 pier on the north bank of the river, 240 meters between the two main piers and another 124 meters south of the No 41 pier.

The Tuojiang super bridge is the most difficult bridge to construct for the Chongqing-Kunming section. It is located in the suburbs of Luzhou and its double-column V-shaped bridge tower on its two main piers is the first of its kind to be built in China, Zhang said.

CREC4 is building the super bridge, whose main span in three sections is also the longest continuous beam on the Chongqing-Kunming section, he said, adding the bridge, which began construction early last year, will end construction by January next year.

Yin Ze, chief engineer of the project from CREC4, said the two blocks on pier 41 standing some 75 meters up from the ground, are difficult to handle. A huge amount of cement was needed, with high prestressing demand in addition to difficulties in tying off the steel bars.

The concrete volume covering some 2,000 square meters and running up to 13 meters in height is immense, he said. It required extremely high-stress performance and installation accuracy in the overall load-bearing brackets.

1 2 Next   >>|
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
CLOSE
 
主站蜘蛛池模板: 国模午夜写真福利视频在线 | 国产一级片视频 | 成年人视频网站免费 | 99re热视频这里只精品 | 成年男女男精品免费视频网站 | 她也啪在线视频精品网站 | 国产手机看片 | 中文字幕一区二区小泽玛利亚 | 高清欧美性xxxx成熟 | 国产精品一区久久 | 国产91丝袜在线播放九色 | 日本特黄网站 | 老头老太做爰xxx视频 | 韩国三级日本三级香港三级黄 | 国产亚洲美女精品久久 | 久久精品国产第一区二区 | 国产视频手机在线 | 欧美在线高清视频 | 亚洲最新| 久久se精品一区二区国产 | 曰本人做爰大片免费观看一 | 极品美女写真菠萝蜜视频 | yy毛片| 三级午夜三级三点在看 | 欧美另类videosgrstv变态 欧美另类高清xxxxx | 久草在线中文最新视频 | 亚洲理论视频 | 欧美一级毛片免费大片 | 欧美一级高清视频在线播放 | 久草热视频在线观看 | 国产在线精品一区二区三区不卡 | 白嫩美女直冒白浆 | 亚洲成年人免费网站 | 她也啪97在线视频 | 日本免费网址 | 岛国精品成人 | 亚洲精品亚洲人成毛片不卡 | 国产福利精品在线观看 | 9久9久女女热精品视频免费观看 | 亚洲日韩中文字幕天堂不卡 | 欧美一级专区免费大片俄罗斯 |