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本文考虑负摩阻的单桩承载力计算,静压桩试桩值的确定和抗拔桩的设计,并结合某工程实例,对某大型冲压设备基础桩基的单桩承载力,试桩值的确定以及抗拔桩的设计进行了探讨。结果表明:桩基须采用抗拔桩来满足设备基坑抗浮的要求。由于各勘测孔的弱土深度不同,必须选取合适的桩长,来得到同一桩基试桩值进行结构设计。
This paper considers the calculation of the bearing capacity of a single pile with negative friction resistance, the determination of the pile value of the static pressure pile and the design of the uplift pile, combined with an engineering example, the bearing capacity of a single pile of a large-scale punching equipment foundation pile, test pile value The determination and design of uplift piles were discussed. The results show that the pile foundation must use anti-pull piles to meet the anti-floating requirements of equipment foundation pits. Because the depth of weak soil in each survey hole is different, the appropriate pile length must be selected to obtain the structural design of the same pile foundation test pile value.