阳蟒高速ZBLJ4云岭2号隧道溶岩裂隙处治办法

On treatment of lava fissure at No.2 tunnel of ZBLJ4 Yunling along Yangcheng-Manghe expressway

以山西路桥阳蟒高速公路云岭2号隧道施工为例,针对其施工过程中遇到多处溶岩裂隙的情况,项目部组织设计院等多位专家进行现场分析,决定在施工过程中针对溶岩裂隙影响范围合理确定处治段落,不破坏原有排水系统的同时加强初期支护、二衬参数,解决了隧道安全通过溶岩裂隙的问题。

Taking No. 2 tunnel construction at Yunling along Yangcheng-Manghe expressway in road and bridge construction in Shanxi, undertakes the site analysis by many experts from the organization and design institutes according to the construction status of the lava fissure in the construction, identifies the treatment sections by deciding the influential scopes of the lava fissure, maintains the former drainage system, improves the primary support and secondary lining parameter, so as to solve the tunnel safely problems by the lava fissure