南京地铁新街口站围护结构钻孔咬合桩施工

Construction technology of drilling bitten pile in retaining structure construction of Xinjiekou station in Nanjing metro

结合南京地铁二号线工程概况,探讨了钻孔咬合桩施工工艺原理,从导墙的施工、单桩的施工介绍了钻孔咬合桩的工艺流程及操作要点,并对其技术控制进行了分析,以保证钻孔咬合桩底部有足够厚度的咬合量。

Combined with general engineering situations of the No. 2 line of Nanjing metro the construction technology and principle of drilling bitten pile are introduced. From construction of guide-wall and single pile construction process and key points of drilling bitten pile are introduced. In the end technical control measures are summarized in order to ensure construction quality of drilling bitten pile.