999精品在线视频,手机成人午夜在线视频,久久不卡国产精品无码,中日无码在线观看,成人av手机在线观看,日韩精品亚洲一区中文字幕,亚洲av无码人妻,四虎国产在线观看 ?

Brilliant 6 Decades Bring 3000 Grand Bridges—To those who have designed and built the most bridges in the world

2019-09-05 02:45:20ByBoNingZhangJingLiuPeiya
Special Focus 2019年8期

By Bo Ning,Zhang Jing & Liu Peiya

武漢長江大橋是新中國成立后在長江上修建的第一座公鐵兩用橋,被稱為“萬里長江第一橋”。Wuhan Yangtze River Bridge,the first highway-railway bridge over the Yangtze River,is often referred to as the “First Bridge of the Yangtze.”

The total number of road bridges and railway bridges in China has exceeded one million,whose total length now tops the world,making China the world’s No.1 in terms of bridge building.China has been breaking world records in bridge construction almost every year of the past decade.Half or more of the world’s top ten arch bridges,ten girder bridges,ten cable-stayed bridges and ten suspension bridges are made in China.Among China’s bridge-building enterprises,one emerges as an outstanding leader—it is the China Railway Major Bridge Engineering Group Co.,Ltd.(CRMBEG) which was originally established for building China’s first bridge across the Yangtze River.

From the construction of the Wuhan Yangtze River Bridge in the 1950s to the Wuhan Yangsigang Yangtze River Bridge to be opened soon,CRMBEG has designed and built more than 3,000 bridges both at home and abroad in the past 60 years,creating many highquality projects to establish itself as a leading corporation in bridge construction and designing in the world.

On August 23,1999,CRMBEG erected a white marble monument with an inscription reading “Declaration of Quality for a Centurylong Bridge” near the pier of the Wuhu Yangtze River Bridge in Central China’s Anhui Province,and solemnly made a commitment,“We regard quality of a bridge as our lifeblood and we will bear responsibility for the bridge’s quality for a lifetime!” and proposed an initiative “To start bridge building competition,by so doing we shall make every bridge a finely crafted project with both beautiful design and high quality construction and envision it as a representation of modern civilization!”

In one attempt,the closure of steel truss girders as heavy as 700 tons are made,and thousands of screw holes are precisely aligned.The margin of error of each high-strength bolt hole is only 0.2 mm.Qualification rates during spot checks for the concrete quality stay at 100 percent.The tools of the trade CRMBEG adopts include the new type 5000 super large rig,the top-of-the-line heavy-duty horizontal arm,the D5200 type upper-slewing tower crane,an oversized 400-ton mast-beam crane,the “Little Swan” 2500-ton carrier-integrated ship,the “Tianyi” 3000-ton carrier-integrated ship,the “Bridge Seagull” 3600-ton floating crane and so on.All the above mentioned miracles and behemoths were just a small part of CRMBEG’s recordbreaking accomplishments.

The group has also pioneered a “bridge hospital” to provide its clients with life-cycle operation management service by setting up a professional bridge health-monitoring cloud computing center.It employs advanced technology,materials and processes to check and reinforce problematic bridges and thus prolong their service life.

For more than 60 years,CRMBEG has grown from an apprentice to a global leading force.The completion of more than 3,000 high quality bridges is a good representation of China’s leading bridge technology.China has now achieved a healthy development pattern between society,environment,and relevant enterprises.So far,all these bridges have withstood the test of time with no quality incidents found within their service life.

The group has built a series of grandeur bridges in the Belt and Road countries as well,which has upgraded local transportation efficiency,boosted people’s livelihoods,and promoted local economic prosperity.By setting up “dream bridges” and friendship bridges between China and other countries,China has made considerable contributions to the cause of bridge building in the world.This issue has selected some representative bridges built by the group to share with our readers.

(Translation: Wang Wen)

中國中鐵大橋局參建的港珠澳大橋是世界最長的跨海大橋。Hong Kong-Zhuhai-Macao Bridge,an important section of which was built by China Railway Major Bridge Engineering Group Co.,Ltd.,is the world's longest sea-crossing project.

東海大橋East Sea Bridge

建設中的平潭海峽公鐵兩用大橋The Pingtan Cross-strait Highway-railway Bridge under construction

杭州灣跨海大橋Hangzhou Bay Bridge

廈門集美大橋Xiamen Jimei Bridge

青藏鐵路拉薩河特大橋Lhasa River Bridge,a landmark project on Qinghai-Tibet Railway

水柏鐵路北盤江大橋 Beipan River Bridge on Liupanshui-Baiguo Railway

鄭新黃河大橋Zhengzhou-Xinxiang Yellow River Bridge

澳門西灣大橋Sai Van Bridge,Macao

主站蜘蛛池模板: 无码专区国产精品一区| 无码AV高清毛片中国一级毛片| 国内毛片视频| 激情乱人伦| 国产精品一区二区不卡的视频 | 欧美区一区| 高清国产在线| 国产精品女同一区三区五区| 精品国产成人三级在线观看| 国产福利在线免费| 日韩久草视频| 无码一区18禁| 国产精品亚洲一区二区三区z| 亚洲国产成人无码AV在线影院L| 国产成人精品一区二区| A级毛片无码久久精品免费| 中文字幕佐山爱一区二区免费| 亚洲日本一本dvd高清| 国产第一页亚洲| 内射人妻无套中出无码| 成人国产免费| 国产精品尹人在线观看| 天堂岛国av无码免费无禁网站| 99久久精品国产自免费| 1024你懂的国产精品| 欧美福利在线| 高清亚洲欧美在线看| 欧美啪啪视频免码| 国产原创第一页在线观看| 最新加勒比隔壁人妻| 亚洲资源站av无码网址| 免费国产好深啊好涨好硬视频| 久久久久夜色精品波多野结衣| 欧美丝袜高跟鞋一区二区| 国产精品一区在线观看你懂的| 六月婷婷综合| 欧美精品另类| 伊人精品成人久久综合| 强奷白丝美女在线观看| 91国内外精品自在线播放| 国产丝袜第一页| 国产精品私拍99pans大尺度| 亚洲日韩精品伊甸| 久青草免费视频| 欧美一级大片在线观看| 亚洲天堂网视频| 97se亚洲综合在线| 中文字幕色站| 欧美区一区二区三| 亚洲av无码久久无遮挡| 国产无码制服丝袜| 亚洲日韩精品欧美中文字幕| 国产成人福利在线| 97人妻精品专区久久久久| 福利在线不卡一区| 99在线国产| 亚洲一级毛片在线观| 免费播放毛片| 激情五月婷婷综合网| 亚瑟天堂久久一区二区影院| 日韩国产黄色网站| 国产精品99久久久久久董美香| 久久一本精品久久久ー99| 日韩在线影院| 女人18毛片一级毛片在线| 女人18一级毛片免费观看| 久久中文电影| 亚洲自偷自拍另类小说| 免费看美女自慰的网站| 国产91小视频在线观看| 国产地址二永久伊甸园| 婷婷激情亚洲| 中文字幕资源站| av一区二区三区高清久久| 激情综合网址| 伊人色婷婷| 任我操在线视频| 国产成人乱码一区二区三区在线| 国产精品女熟高潮视频| 国产人免费人成免费视频| 亚洲无卡视频| 色视频久久|