龙永高速响米坳隧道龙山端洞口围岩浅埋偏压崩塌堆积体中,隧道开挖边仰坡容易坍塌,成洞困难。处治设计采用了抗滑桩、地表注浆加固、暗洞结构加强等措施,保护了进洞安全和营运期间隧道衬砌结构安全,对类似工程有一定的借鉴意义。 Longyong high-speed meter Au tunnel Longshan end hole surrounding rock shallow bias collapse collapse body, the tunnel side elevation slope easily collapse, hole difficulties. The anti-slide piles, the surface grouting reinforcement and the strengthening of the dark hole structure are adopted in the design of the treatment to protect the safety of the tunnel and the safety of the lining structure of the tunnel during operation, which is of some reference to similar projects.