亚洲免费av电影一区二区三区,日韩爱爱视频,51精品视频一区二区三区,91视频爱爱,日韩欧美在线播放视频,中文字幕少妇AV,亚洲电影中文字幕,久久久久亚洲av成人网址,久久综合视频网站,国产在线不卡免费播放

        ?

        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
        關鍵詞:武漢長江大橋西灣公鐵

        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

        猜你喜歡
        武漢長江大橋西灣公鐵
        中核公鐵
        中國核電(2021年3期)2021-08-13 08:56:56
        公鐵聯(lián)運服務平臺研討
        贛東北樟樹墩-西灣蛇綠混雜巖中輝長巖和玄武巖年代學、地球化學特征及地質(zhì)意義
        我是
        詩歌月刊(2020年3期)2020-03-30 03:26:58
        我 是
        詩選刊(2020年3期)2020-03-23 13:34:35
        西灣的陽光
        人物畫報(2020年1期)2020-01-07 09:23:50
        澳門
        毛澤東與武漢長江大橋
        Qiáo
        Special Focus(2019年6期)2019-02-20 15:27:22
        西灣村采風
        亚洲精品久久久无码av片软件| 国产手机在线观看一区二区三区 | 国产亚洲午夜精品久久久| 久久国产人妻一区二区| 国产成年女人特黄特色毛片免| 国产精品丝袜在线不卡| 加勒比一本大道大香蕉| 人妻精品一区二区免费| 亚洲av午夜福利精品一区不卡| 少妇被又大又粗又爽毛片| 欧美mv日韩mv国产网站| 欧美第五页| 国产精品国产三级国产一地| 国产精品国产av一区二区三区| 少妇激情一区二区三区视频| 亚洲成aⅴ人在线观看| 日韩av一区二区三区精品| 国产精品国产三级国产av18| 国内精品视频在线播放不卡| 少妇AV射精精品蜜桃专区| 丰满人妻一区二区三区免费| 亚洲av天堂免费在线观看| a级毛片高清免费视频就| 97福利视频| 亚洲免费精品一区二区| 精品乱人伦一区二区三区| 无码熟熟妇丰满人妻啪啪| 国产一区二区丁香婷婷| 国语对白免费观看123| 99精品国产一区二区| 欧美视频九九一区二区| 久久亚洲国产高清av一级| 精品免费国产一区二区三区四区| 精品人妻系列无码人妻免费视频| 精品的一区二区三区| 久久人妻精品中文字幕一区二区 | 国99久9在线 | 免费| 欧美三级不卡视频| 亚洲第一女人天堂av| 欧美丰满少妇xxxx性| 伊人色综合九久久天天蜜桃 |