摘要
饱和软粘土地基沉桩过程中,挤土效应形成的超静孔隙水压力对工程有着重要的影响,介绍了沉桩过程超静孔隙水压力计算方法和消散规律的理论计算方法,并对照中远船务舟山造船基地船台管桩施工中地基软土超静孔隙水压力观测数据进行比较分析,分析结果表明计算结果和实测数据比较吻合;对工程实测孔隙水压力和水平位移观测资料进行分析,研究管桩加固施工过程中对船台软土地基稳定安全的影响。
The excess pore pressure of saturated soft clay foundation caused by pile driving has a significant effect on construction. The calculating method for the excess pore pressure and the dissipation of the excess pore pressure are discussed here, and the data calculated by the method are compared with the measured data of the excess pore pressure of saturated soft clay foundation caused by pile driving in the project of Zhoushan shipyard. The comparing results show that the calculated data are fitted with the measured data. At last, the influence on the stabilization of soft soil foundation by the construction of pipe pile is analyzed according to the measured data of excess pore pressure and horizontal displacement.
出处
《水利与建筑工程学报》
2010年第4期138-142,共5页
Journal of Water Resources and Architectural Engineering
关键词
管桩
孔隙水压力
水平位移
pipe pile
pore water pressure
horizontal displacement
