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该文针对深长摩擦桩的桩侧摩阻力引起桩底土层的沉降不容忽视 ,通过对Mindlin公式进行积分 ,提出了一种荷载传递法的修正方法。同时对灌注桩桩底沉渣对桩端荷载传递函数的影响进行了考虑。对难以进行现场试验的深长桩提出了利用土的物理力学参数确定传递函数的计算方法 ,对各参数的试验方法及取值进行了详细的分析。并与工程实例进行比较 ,验证了该文方法的可行性。
In this paper, the settlement of pile-soil due to the pile-side friction caused by the deep friction pile can not be neglected. Based on the integration of Mindlin formula, a modified method of load transfer is proposed. At the same time, the influence of sediment on the load transfer function of pile tip is considered. For the deep piles which are difficult to test in the field, a method to calculate the transfer function by using the physical and mechanical parameters of the soil is proposed. The test methods and values of each parameter are analyzed in detail. And compared with the engineering example, the feasibility of the method is verified.