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本文介绍了嘉兴软土地基中微型桩单桩和群桩的抗拔试验,试验表明微型桩能承受一定的抗拔力,尤其是斜桩基础能有效地减少竖向拉力引起的位移,微型桩群桩表现出更好的抗拔性能。该文将试验结果与现有抗拔桩承载力公式计算值进行了比较分析,探讨了微型桩直桩和斜桩的抗拔系数以及群桩效应系数,为其今后的工程设计和应用提供一定的参考。
In this paper, the pull-out test of micro-pile single pile and group pile in Jiaxing soft soil foundation are introduced. The experiment shows that micro-pile can withstand some anti-pulling force, especially the inclined pile foundation can effectively reduce the displacement caused by vertical tension. Group pile showed better anti-pull performance. In this paper, the experimental results are compared with the calculated values of the bearing capacity formulas of the existing uplift piles, and the anti-pull coefficient and pile group effect coefficient of the piles and inclined piles of the micro-piles are discussed, which will provide certain reference for their future engineering design and application The reference.