计算水平桩的修正双参数法

Practical Calculation of Long Pile by Revised Dual Parametric Method

指出了双参数法微分方程在公式推导与参数取值方面存在的不足,对微分方程中深度的幂数进行了修正并推导出计算公式。修正参数后的推导公式克服了原公式取值只能为正整数1和有限个小数的缺陷,使取值可取任意整数和小数,从而拓宽了参数的取值范围。当桩在弯矩和水平力共同作用时,利用桩的边值问题可求得桩身各截面的弯矩、剪力、位移、转角。实例计算证明,用修正后的幂数作为参数,推导正确,取值灵活且与实测值很接近。

The deficiencies in deducing the dual parametric differential equation and acquiring the parameter value are pointed out. The power of the depth is revised and the computation formula is deduced. The equation after parameter revising can overcome the limitation of the former differential equation, in which the parameters can only be positive integer 1 or the finite decimal, and extend the scope of the value. The arbitrary integers and the decimals can be acquired. Under the bending moment and the lateral force, the bending moment of the pile section, the shearing force, the displacement and the rotation angle of the pile can be obtained by solving the boundary values. Practical examples prove that the method with revised power of depth is accurate in the equation deducing, and it is flexible in the value acquiring. The computation results can approach fairly to the actual measurement.