近日，兰州至张掖三四线铁路全线控制性工程高铁隧道----新乌鞘岭隧道，目前工程总体过半。该隧道属于高铁隧道，设计时速250公里，全长超过17公里。
由于特殊的地质构造，施工队伍试用了自主研发的激光断面扫描程序，监控开挖过程中整个隧道的收缩变形情况，如果发生异常，及时提醒施工人员采取措施进行加固。由于施工现场地处生态保护区，因此工程施工过程中采取了多种措施保护生态环境。
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