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用“m”法计算桩基时,土壤的弹性抗力系数是按三角形分布考虑的。对于深埋桩则弹性抗力系数应按梯形分布考虑。此时桩柱弹性曲线微分方程为(?)=-m·b_p·x(y+h_0)。本文用矩阵代数方法简捷地求得了上述微分方程的数值解。并按不同的桩顶换算埋深,制定了与现行铁路桥规类似的影响函数表,以供现场使用。
When using “m” method to calculate the pile foundation, the soil elastic resistance coefficient is considered according to the triangle distribution. For deep buried piles, the elastic resistance coefficient should be considered as a trapezoidal distribution. The differential equation of the elastic curve of the pile at this moment is (?) = - m · b_p · x (y + h_0). In this paper, we use the matrix algebra method to obtain the numerical solution of the above differential equation. And according to different pile top conversion depth, developed with the current railway bridge gauge similar impact function table for the field use.