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考虑嵌入砂或砂砾层中的桩底灌浆桩竖向承载力提高的机制 ,提出了一个桩底灌浆桩竖向承载性能的模拟分析方法。该方法包括桩底灌浆分析 ,浆液渗透力在桩端周围土体中引起的应力分析 ,及在竖向荷载作用下桩的性能分析三个步骤。采用本文提出的模拟分析方法进行了影响参数的研究 ,并对现场压桩实例进行了对比分析。
Considering the mechanism of vertical bearing capacity of pile grouting pile embedded in sand or gravel layer, a simulation analysis method of vertical bearing capacity of pile grouting pile is proposed. The method includes the grouting analysis of pile bottom, the stress analysis of seepage force of soil in the soil around pile end, and the performance analysis of pile under vertical load. The influence parameter was studied by using the simulation analysis method proposed in this paper, and a comparative analysis was made on the examples of on-site piling.