桩土共同作用下摩擦桩桩长公式的探讨

桩长检测作为基桩完整性检测当中的一项指标一直以来没有得到应有的重视,其原因有许多,但其中重要的一点就是桩长检测存在一定的误差,而产生误差的主要原因有对纵波在桩身传播速度估计的不准确以及忽略了桩侧土作用的影响。文章针对桩侧土作用的影响,通过桩土作用下桩的振动方程,探讨了摩擦桩在考虑土作用下的振动方程及桩长公式,为实际工程中桩长检测提供一定的理论依据。

Study on the Computing Formula of Friction Pile Length under Pile-soil Interaction

Pile length has not been given due attention as an indicator of the pile integrity test.The most important reason lies in the errors in pile length test.These errors are produced because the P-wave propagation velocity is not estimated accurately and the pile-soil interaction is ignored.With the consideration of pile-soil interaction,the vibration equation and length computing formula for the friction pile are approached in this paper,which may provide theoretical basis for pile length test in the actual pr...