富水软弱围岩公路隧道塌方治理施工技术

Construction Technology of Collapse Treatment for the Rich-water Highway Tunnels in Weak Surrounding Rock

隧道塌方是公路工程中常见的地质灾害之一,陈家坡隧道部分段落岩体破碎、稳定性差,施工过程中出现了渗水情况,导致塌方。通过阐述塌方发生过程,分析塌方产生的原因,研究了塌方治理方案,防止塌方进一步扩大并安全、省时、经济地完成了塌方段治理工作。

This paper mainly introduces the collapse happened during the Chenjiapo tunnel construction of Hubei. This paper analyzes the causes of collapse,studies the treatment of the surrounding weak rock in rich-water area. By carrying on the specific measurements during the tunnel construction,the treatment work can be done more safety,less time cost,more economic,provided the security of collapse treatment,and saves time and cost,offers beneficial reference for the large-scale collapse treatment of other tunnel in the future.