京张高铁清华园隧道顺利贯通

Comment(s)打印 E-mail 新华网 2018-11-21

11月20日,“天佑号”盾构机刀盘从京张高铁清华园隧道洞内顶出。当日,由中铁十四局集团负责施工的京张高铁清华园隧道顺利贯通。清华园隧道是目前北京市内最大直径的盾构隧道,为京张高铁的控制性工程,开挖直径12.64米,全长6.02公里。它的贯通为2019年底京张高铁全线通车创造了有利条件。[新华社 邢广利 摄]

Photo taken on Nov. 20, 2018 shows the tunnel boring machine in the Qinghuayuan tunnel at a construction site in Beijing, capital of China. The work on Qinghuayuan tunnel was completed on Tuesday. The tunnel is 6.02 km in length and 12.64 meters in diameter. The completion of the tunnel laid the foundation for the opening of the Beijing-Zhangjiakou high-speed railway by the end of 2019. (Xinhua/Xing Guangli)

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