南京地铁新庄站深基坑支护设计与开挖安全分析

The Deep Excavation Design and Safety Analysis of Nanjing Metro Xin-Zhuang Station

通过分析南京地铁3号线新庄站的工程地质条件,结合现场周边环境条件,选取钻孔咬合桩、钻孔灌注桩+深层搅拌桩相结合围护结构方案,这不仅提高工程设计方案的可实施性,而且从开挖过程中的监测数据来看,基坑地表及围护处于稳定状态,因此地铁基坑围护结构设计方案是安全的,实用的。

By analyzing the engineering geological conditions,and the site environmental conditions of Nanjing Metro Xin-Zhuang Station,the drilling bitten pile,bored piles ＋ combination of deep excavation is selected.It not only improves practicality of the engineering design,but also,the deep excavation is stable from the monitoring data of excavation process.Therefore,the subway design is safe.