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由于桩的相互影响,在粘土地基内群桩中每根桩承受的负摩擦力都小于单桩的负摩擦力,而作用于边桩和角桩上的负摩擦力大于中心桩上的负摩擦力。这是负摩擦力的群桩效应问题。下面介绍几种计算群桩负摩擦力的方法。
Because of the mutual influence of piles, the negative friction force of each pile in the pile group is less than that of the single pile, and the negative friction force acting on the side piles and corner piles is greater than the negative friction on the center pile. force. This is a group pile effect with negative friction. The following describes several ways to calculate the negative friction force of a pile group.