据《人民铁道》报道,日前,云桂铁路石林双线长大隧道提前贯通。云桂铁路石林双线隧道全长18.208 km,是目前我国最长的单洞双线隧道,也是亚洲最长的采用钻爆法施工的岩溶隧道。该隧道地处著名的喀斯特地貌风景区石林,地质情况复杂多变,要穿越6条断层带和4条断层破碎带,洼地、漏斗、落水洞等岩溶形态密布,高风险区段达7 810m,被列为云桂铁路I级高风险隧道。施工中,中国中铁一局集团施工人员确定了“石变我变、安全推进”的施工原 According to “People’s Railway” report, a few days ago, Yun-Gui Railway Shilin double long tunnel in advance. The total length of the double-track tunnel of Yunlin-Guilin Railway is 18.208 km, which is the longest single-hole double-track tunnel in China and the longest karst tunnel constructed by drilling and blasting in Asia. The tunnel is located in the famous Karst landscape Shilin. The geological conditions are complex and changeable. It is required to cross 6 fault zones and 4 fault fractures. The karst forms such as depressions, funnels, Is listed as Yun Gui Railway I-level high-risk tunnel. During the construction, the constructors of China Railway First Bureau Group confirmed the original construction of “Stone change, safety promotion”