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发布时间:2018-11-09 09:07:52 来源: 分享到:


The Liangshui Tunnel of Lanzhou-Chongqing Railway is located in Longnan City, Gansu Province. The main tunnel is 4945.3m in length. The geological structure of the tunnel area is complex and the hydrogeological conditions are poor. The soft rock deformation under the condition of high ground stress encountered in construction is referred to as "a rare problem in China and a difficult problem in the world" by the experts in the industry. 

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