<tt id="6hsgl"><pre id="6hsgl"><pre id="6hsgl"></pre></pre></tt>
          <nav id="6hsgl"><th id="6hsgl"></th></nav>
          国产免费网站看v片元遮挡,一亚洲一区二区中文字幕,波多野结衣一区二区免费视频,天天色综网,久久综合给合久久狠狠狠,男人的天堂av一二三区,午夜福利看片在线观看,亚洲中文字幕在线无码一区二区

          Shield machine achieves Yangtze tunnel milestone

          Project: Maintaining safety, quality standards highlighted

          By Zheng Zheng in?Shanghai | chinadaily.com.cn | Updated: 2025-12-16 23:32
          Share
          Share - WeChat
          The world's largest-diameter shield machine for constructing high-speed railway tunnels, independently developed by China, marks its 10,000-meter tunneling milestone under the Yangtze River on Tuesday. With only 1,000 meters remaining to the southern bank of the Yangtze, the boring operation is expected to conclude in late 2026. PHOTO BY GAO ERQIANG / CHINA DAILY

          Wang added that the implementation of nine intelligent systems across sensing, design, construction and management areas has enabled normalized unmanned intelligent boring with algorithmic control.

          Engineers have overcome several technical challenges, particularly the complex geology of the Yangtze riverbed, to advance the project.

          Li, the chief engineer, said they have addressed obstacles including "the superlarge diameter and long boring distance, navigation through different sediment layers with gas emissions, and simultaneous construction of multiple tunnel components".

          The project team has maintained and will continue to maintain strict environmental protection measures, given the tunnel's winding route through residential areas, embankments, anchorage zones and protected aquatic breeding grounds, Li said.

          As the project enters its final phase of underwater boring, the focus is on maintaining safety and quality standards, he said, adding that the team is conducting thorough equipment inspections and maintenance while fully utilizing the intelligent construction system to ensure successful completion of the work.

          The Shanghai-Nanjing-Hefei high-speed railway represents a crucial section of China's national high-speed railway network. When operational, it will strengthen connectivity between the Shanghai, Nanjing and Hefei metropolitan areas, further advancing the integration of the Yangtze River Delta region.

          zhengzheng@chinadaily.com.cn

          |<< Previous 1 2 3   
          Top
          BACK TO THE TOP
          English
          Copyright 1994 - . 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
          主站蜘蛛池模板: 欧美亚洲另类 丝袜综合网| 日本熟妇色xxxxx日本免费看 | 国产成人亚洲精品成人区| 久久青青草原亚洲AV无码麻豆| 青草视频在线观看入口| 国产精品无码久久久久AV| 女人喷液抽搐高潮视频| 97se亚洲综合自在线| 亚洲综合一区二区三区在线| 国产精品中文字幕视频| 日本高清一区免费中文视频| 蜜桃草视频免费在线观看| 亚洲一二三区精品美妇| 国产成人亚洲综合色婷婷秒播| 久久亚洲国产最新网站| 亚洲欧美人成网站aaaa| 亚洲精品国产自在现线最新| 久久精品久久电影免费理论片| 人妻出轨av中文字幕| 久久蜜臀av一区三区| 亚洲影院丰满少妇中文字幕无码| 亚洲欧美激情四射在线日| 国产69精品久久久久人妻| 亚洲色偷偷色噜噜狠狠99| 亚洲永久精品日韩成人av| 亚洲午夜成人精品电影在线观看| 中文字幕在线视频不卡| 国产欧美综合在线观看第十页 | 99视频30精品视频在线观看| 少妇激情一区二区三区视频小说| 国产欧美日韩视频一区二区三区| 亚洲欧洲日韩国内高清 | 国产精品无码av不卡| 国产精品成人aaaaa网站| 又大又硬又爽免费视频| 人妻系列av无码专区| 国产精品综合一区二区三区| 少妇激情一区二区三区视频| 97无码人妻福利免费公开在线视频| 成人免费A级毛片无码网站入口| 精品人妻av区波多野结衣|