沿海区域淤泥填石区浅埋暗挖隧道施工技术研究

Study on Construction Technology of Shallow Buried Tunnel in Silt-filled Area in Coastal Area

1号线乌石浦站大里程区间隧道面临海域淤泥填石地质,采用浅埋暗挖法施工。文中深入研究了辅以地面旋喷加固、降水及掌子面帷幕注浆等技术在沿海淤泥填石地层中的应用,以确保区间隧道顺利通过淤泥填石区、管线及重要建筑物,实现了浅埋暗挖隧道在沿海填石地质的重大突破。

The tunnel in the large mileage section of wushipu station of line 1 is faced with the sea mud rock filling geology,and the shallow buried and concealed excavation method is adopted for construction.In order to ensure the smooth passage of the section tunnel through the mud rock fill area,pipelines and important buildings,the paper deeply studies the application of the technology in the coastal mud rock fill strata,such as the ground rotary jet reinforcement,precipitation and the tunnel face curtain grouting,etc.,which has achieved a major breakthrough in the coastal rock fill geology of the shallow buried tunnel.