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中文摘要：
在对土工格室＋碎石桩复合地基结构组成分析的基础上,深入剖析了土工格室＋碎石桩复合地基的作用机理,并对该类复合地基桩土应力比的变化规律进行了探讨,对传统复合地基桩土应力比计算公式进行修正,导得了考虑土工格室加筋垫层作用和时间效应的桩土应力比计算公式。文末以某工程实例对本文计算方法进行了验证,并给出了相关影响因素分析。结果表明,本文桩土应力比计算方法可有效考虑土工格室＋碎石桩复合地基的受力特点和固结特性,方便工程应用。
英文摘要：
Based on the structural-makeup analysis of composite foundation reinforced by geocell mattress and gravel pile, the working mechanism of that was deeply analyzed and the variation law of pile-soil stress ratio of this kind of composite foundation was discussed. The traditional calculation method of pile-soil stress ratio of composite foundation was modified and the new one was developed with the effect of geocell reinforced mattress and time effect considered. Lastly the calculation method was verified by an engineering project and the correlated influence factors were analyzed. The results show that the stress characteristics and consolidation behavior of this composite foundation can be considered effectively in the new calculation method and it is easy to apply to the engineering project.
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