根据波动分析理论,建立了考虑土塞效应的管桩计算模型和波动方程,提出了一种计算土塞效应的新方法,可分析打桩过程中任意时刻桩身及桩内土塞任意处的运动状态,并编制了相应计算程序,对实际工程的打桩分析结果表明,该方法对土塞效应的判断、沉桩过程的预测等与工程实测数据吻合较好。 According to the theory of wave analysis, the calculation model and wave equation of pipe pile considering earth plug effect are established. A new method of calculating earth plug effect is proposed, which can be used to analyze the movement of pile body and soil plug anywhere at any time during piling process And the corresponding calculation program has been compiled. The piling analysis results of the actual project show that the judgment of the plug effect, the prediction of the pile sinking process, and the actual measured data are in good agreement.