深孔注浆在地铁下穿市政道路的技术应用

Application of Deep Hole Grouting Technology in the Subway Passing Through Municipal Road

结合沈阳地铁四号线砂阳路站下穿南京南街主干道施工,围绕深孔注浆工法的目的、施工方法、注浆浆液标准、控制要点等方面阐述深孔注浆施工技术。该技术有效的解决了车站覆土浅,围岩自稳性差的问题,岩层裂隙填充密实,同时地下管线稳定得到有效控制,确保了掘进速度和安全。

Combined with the construction of Shayang Road Station of Shenyang Metro Line 4 under the main road of Nanjing South Street,this paper expounds the construction technology of deep hole grouting around the purpose,construction method,grouting slurry standard,control points,etc.The technology effectively solves the problems of shallow earth cover and poor self stability of surrounding rock in the station,dense filling of rock fissures,and effective control of underground pipeline stability to ensure the driving speed and safety.