“弹性桩的无量纲解法”近年来已开始被采用。它可以考虑各种随深度变化的土壤模量;还可以通过逐次渐进的方法使桩(土抗力)位移的非线性特性得以考虑;而且其计算过程较简化,减少了计算工作量。黄河某双线铁路大桥的一部份桥墩基础为高桩承台钻孔灌注桩。在设计计算时,大桥局三桥处的设计人员学习了兄弟单位的经验,以及参阅了国外有关资料,采用了“弹性桩的无量纲解法”。特作为计算实例报导于此。为了读者的方便,在算例的前面对此法作了简要的介绍。 The “dimensionless solution to elastic piles” has started to be adopted in recent years. It can consider various soil moduli that vary with depth. The nonlinear characteristics of displacement of pile (soil resistance) can also be considered by a gradual method. And its calculation process is simplified and the computational workload is reduced. Part of the bridge foundation of a double-track railway bridge in the Yellow River is a bored pile with high-pile cap. In the design and calculation, designers at the Third Bridge of the Bridge Bureau studied the experience of their brother units and read the relevant foreign materials and adopted the “dimensionless solution method of elastic piles.” Special report as a calculation example here. For the convenience of the reader, this method is briefly introduced in front of the example.