1. Text: | Print|

      China builds first high-speed railway through karst region

      2014-12-22 08:40 Xinhua Web Editor: Qin Dexing
      1

      Construction of China's first high-speed railway running through the country's southwest karst regions was completed on Sunday.

      The 857-km railway linking Guiyang, capital of landlocked mountainous province of Guizhou, with south China's economic powerhouse Guangzhou, is expected to become operational on Friday.

      Guizhou has the world's most typical karst plateau landscape, which was inducted as a UNESCO World Heritage Site in 2007. Karst topography is a landscape formed from the dissolution of soluble rocks such as limestone.

      Stretching through the complicated karst clusters, the railway had half of its length run through 238 tunnels, two of which are more than 14 km long, said Zhang Jianbo, general manager of the Guiyang-Guangzhou High-Speed Railway Co.

      It took builders four years to drill through the two longest tunnels. Construction was often disrupted by breaking rocks, rupture of strata and water infiltration, Zhang said.

      The construction company applied for six national patents covering their shockproof technology which was adopted to reduce the vibration that occurs when a train travelling at 250 km/hour runs through mountain tunnels.

      Wang Mengshu, a tunnel expert with the Chinese Academy of Engineering, said the technology and machinery engineering developed for building the Guiyang-Guangzhou high-speed railway represents the country's new-generation innovation in tunnel engineering.

      Comments (0)
      Most popular in 24h
        Archived Content
      Media partners:

      Copyright ©1999-2018 Chinanews.com. All rights reserved.
      Reproduction in whole or in part without permission is prohibited.

      主站蜘蛛池模板: 久久精品国产亚洲7777| 免费国产黄线在线观看| 免费精品国产自产拍观看| 中国黄色免费网站| 99精品视频在线免费观看| 国产成人涩涩涩视频在线观看免费 | 亚洲性猛交XXXX| 中文字幕手机在线免费看电影| 亚洲一区精品伊人久久伊人| 亚洲国产一区在线| 精品无码AV无码免费专区| 午夜影视日本亚洲欧洲精品一区| 国产亚洲高清不卡在线观看| 成人永久免费高清| 在线成人爽a毛片免费软件| 亚洲AV日韩AV天堂一区二区三区| a级毛片免费在线观看| 免费AA片少妇人AA片直播| 亚洲综合久久夜AV | 免费夜色污私人影院网站| 成年女人免费视频播放体验区| 亚洲一区二区三区高清不卡| 免费无码AV片在线观看软件| 亚洲一区AV无码少妇电影| 四虎永久精品免费观看| 人妻无码中文字幕免费视频蜜桃| 国产偷国产偷亚洲清高动态图| 亚洲人av高清无码| 亚洲人AV永久一区二区三区久久| 一级中文字幕免费乱码专区| 久久久久无码精品亚洲日韩| 永久看日本大片免费35分钟| 亚洲欧美日韩国产成人| 亚洲精品视频在线观看你懂的| 黄色网站软件app在线观看免费 | 国产亚洲综合一区柠檬导航| 久9热免费精品视频在线观看| 国产AV旡码专区亚洲AV苍井空 | 亚洲国产成人五月综合网 | 国产一级淫片a视频免费观看| 午夜成人无码福利免费视频|