浅谈隧道零开挖进洞施工技术

Discussion on the Construction Technology of Tunnel Zero Excavation

文中结合江罗高速围仔隧道进洞方案,通过对出口端洞口地形、地质条件的调查,确定采用"零进洞"开挖施工工法,确保洞口浅埋段的进洞安全和隧道洞口周围的植被保护,维持原有地形地貌。总结隧道洞口前置式洞门施工方法,实现稳定边仰坡和保护生态环境的目的,为类似隧道进洞施工提供参考和借鉴。

To ensure the vegetation of the shallow buried section of the hole and the safety of the tunnel, and maintain the original topography, this paper illustrates the zero hole excavation construction method in Weizai Tunnel project of Jiangluo Highway on the basis of the investigation on topographic and geological conditions of the outlet. The pre-construction method is also employed to achieve the purpose of slope and protect the ecological environment of the stable boundary, which provides some reference for similar tunnel construction project.