（山东省城建设计院， 济南 250001）

［摘要］详细论述了复合地基变刚度调平设计的规范依据及应用方法，并将桩基规范中承台底地基土分担荷载的复合桩基沉降计算方法引入复合地基沉降计算中，以体现桩位平面布置即竖向支承刚度分布对地基沉降的影响，为复合地基设计提供了一种新方法。

［关键词］刚性桩复合地基； 变刚度调平设计； 沉降计算

中图分类号： TU470+.3 文献标识码： A文章编号：  1002-848X(2016)S1-0774-04

Rigid pile composite foundation design method and applications by optimizing pile

 foundation stiffness to reduce differential settlementLiu Changjun, Meng Fanci, Liu Chang

（Shandong Urban Construction Design Institute, Jinan 250021, China）

Abstract： According to current code, the composite foundation design by optimizing pile foundation stiffness to reduce differential settlement was discussed. Calculating settlement method of composite pile foundation was applied to composite foundation to considering the influence of the pile site or pile stiffness distribution. A new method was provided to locate pile in rigid pile composite foundation design. 

Keywords： rigid pile composite foundation; optimized design of pile foundation stiffness to reduce differential settlement; settlement calculating

作者简介： 刘昌军，高级工程师，一级注册结构工程师，注册土木工程师（岩土），Email:573235519@qq.com。