简论空心桩基础构造尺寸的优化计算和确定

通过对桥梁钻孔灌注桩基础发展的简述，论述空心桩基础新技术的必要性，并结合实例对空心桩试验进行讨论分析，根据最优化设计基本理论，分别以工程造价最低为目标、以单桩混凝土体积最小为目标，确定空心桩构造尺寸，对空心桩基础的应用前景进行了展望。

Hollow Pile Base Configuration Size Optimization Calculation and Determination

By reviewing the development of cast-in-site bored pile, the paper expounds the necessity of new hollow pile foundation technique and discusses the hollow pile test combining with an instance. In light of the basic optimization design theory, the aim of minimizing the engineering cost and the volume of single pile concrete is used to determine the size of hollow pile configuration. At the same time, the paper makes the prospect of the application of hollow pile foundation.