闹市区复杂地质条件下高风险轨交地下车站的施工

Construction of Underground Rail Transit Station with High Risk Under Complex Geological Conditions in Downtown Area

结合南京地铁7号线丁家庄站地下车站施工案例,从其工程地质及水文地质条件入手,详细介绍了关键工序的施工工艺,主要包括围护结构、内支撑、土方开挖、防水等技术。实践证明,上述施工关键技术的应用取得了良好的实施效果,为其他类似工程提供了技术参考。

Combined with the construction case of underground station of Dingjiazhuang Station of Nanjing Metro Line 7,starti ng from its engineering geological and hydrogeological conditions,the construction tech no logy of key procedures is introduced in detail,mainly including support structure,internal support,earth excavation,waterproof and other tech no logies.The practice proves that the applicatio n of the above key con struction technology achieves good implementation effect,which provides technical reference for other similar projects.