宜万铁路全长377 km,隧道159座,其中8座Ⅰ级风险隧道建设中面临巨大的突水突泥施工安全风险,工程处理属世界级难题。建设、设计、施工、监理和科研单位通过近6年的共同努力,精心组织、依靠科技、自主创新、拼搏奉献,破解了多道世界难题,目前岩溶高风险隧道安全风险全部解除。可 The total length of Yiwan Railway is 377 km and there are 159 tunnels. Of them, eight of Grade I risk tunnels are faced with a huge construction risk of water inrush and mud construction, and the engineering treatment is a world-class problem. Through nearly six years of concerted efforts, the construction, design, construction, supervision and scientific research units have carefully solved many multidisciplinary problems relying on science and technology, independent innovation and hard work. At present, the safety risk of high-risk karst tunnels has been lifted. can