并对影响因素进行参数敏感性分析，为复合地基优化设计提供理论依据。
Make a parameter sensitivity analysis of influence factor, providing the theory gist for optimizing the design of composite foundation.
基于砂井地基固结对固结系数的敏感性分析 ，得出了砂井地基固结概率分析的简化方法 ；
The ground by partially penetrated sand drain is turned into an equivalent-double-layered ground with the general solution of average degree of consolidation;
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