城市下穿隧道抗浮桩标准化设计研究

Research on Standardized Design of Anti-floating Pile for Urban Underpass Tunnel

为了解决城市下穿隧道抗浮桩的设计算法不统一的问题,研究了抗浮桩设计的标准化流程,对抗浮稳定性计算中的关键问题进行总结梳理,明确了抗浮设防水位、抗浮桩抗拔承载力特征值合理确定方法及抗拔承载力验算方法,可为相关下穿隧道的抗浮桩设计计算提供相应的参考。

In order to solve the problem that the design algorithm of anti-floating pile for urban underpass tunnel was not uniform,the standardized process of anti-floating pile design was studied.The key problems in anti-floating stability calculation were summarized and sorted out.The reasonable determination method of anti-floating water level and anti-floating pile uplift bearing capacity characteristic values,and uplift bearing capacity checking calculation method are defined,which can provide the corresponding reference for the related anti-floating pile calculation for the underpass tunnel.