楠竹山隧道下穿在建高速公路开挖及支护施工

Excavation and Support Construction of Nanzhushan Tunnel under Construction Expressway

结合楠竹山隧道下穿在建高速公路工程实例,以楠竹山隧道的实际情况和独特地质条件为切入点,分析隧道开挖方法和支护施工技术的应用。隧道下穿高速公路长期以来都是隧道工程施工的难点,不同地质条件下,选择对应的开挖方法和支护施工技术,既能有效保证施工质量,也可以降低施工难度,保证施工的安全性,值得施工单位高度重视。

Combined with the example of the highway project under construction under the Nanzhushan Tunnel,the actual situation and unique geological conditions of the Nanzhushan Tunnel are taken as the breakthrough point,and the application of the tunnel excavation method and support construction technology is analyzed.Tunnels running through expressways have long been a difficulty in tunnel engineering construction.Under different geological conditions,choosing the corresponding excavation method and support construction technology can not only effectively ensure the construction quality,but also reduce the construction difficulty and ensure the safety of the construction,which is worth the great attention of construction unit.