中文摘要：

为探索减轻静压沉桩效应不利影响的新途径,提出了一种有孔管桩技术。基于FLAC3D软件建立的模型,比较分析了静压无孔管桩和星状对穿有孔管桩沉桩过程超孔隙水压力的变化情况。模拟分析结果表明：静压沉桩过程中有孔管桩超孔隙水压力的最大值小于无孔管桩超孔隙水压力的最大值,证明了有孔管桩有利于超孔隙水压力消散,从而为有孔管桩技术设计、开发及工程应用研究提供可靠的依据。

英文摘要：

In order to explore a new way to reduce the adverse influence on the effect of sinking-pile process, the technique of pipe-pile with hole has been proposed. Based on model constructed by FLAC3D, the varieties of the relationship of excess pore water pressure have been compared and analyzed between pipe-pile without hole and the star of pipe-pile with hole during static sinking-pile. Simulation results show that the maximum of static pressure pipe-pile with hole of excess pore water pressure is smaller than the maximum of static pressure pipe-pile without hole of excess pore water pressure. It is proved that pipe-pile with hole is more conducive to the dissipation of excess pore water pressure, and provided a reliable theoretical basis for the application technology of pipe-pile with hole.