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Robot Tunneling Beneath Railway Overcomes World-Class Tunnel Construction Challenge

2018-02-05 1110 0人评论

　　记者从中国中铁获悉，西安地铁四号线暗挖隧道右线顺利穿越陇海铁路西安站道岔“咽喉区”，实现了安全贯通。这标志着我国成功攻克在地面轨道无加固条件下穿越湿陷性黄土地层这一世界级隧道施工难题。
　　挖隧道不简单，在“沙滩”里挖隧道更难。据中铁一局城轨公司项目经理梁西军介绍，西安地铁4号线需要穿越火车站的地块，就是浸在水里像豆腐一般嫩的黄土层。
　　地铁4号线是西安市轨道交通线网南北方向的一条主干线，下穿火车站隧道是全线控制性工程。西安火车站是中国西部铁路枢纽之一，每天有240多趟列车通过，平均每6分钟就有一趟。
　　受地面正常通车限制，不能对轨道进行任何加固措施，同时地面沉降必须控制在5毫米以内。梁西军介绍，地面轨道无加固条件下隧穿火车站这一施工技术在国内外尚无先例。因此，工程从一开始就面临着极大的安全风险。
　　为保障精准施工，中铁一局城轨公司首次运用“微型挖掘机器人”代替人工作业。由人拿着一个“游戏手柄”来操作机器人，工效比纯人工提高一倍。

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Robot Tunneling Beneath Railway Overcomes World-Class Tunnel Construction Challenge

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Robot Tunneling Beneath Railway Overcomes World-Class Tunnel Construction Challenge

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热门排行

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