基于分层总和法的水泥搅拌桩复合地基沉降分析

Analysis of Layering Summation in the Composite Foundation Settlement of Cement Mixing-soil Pile

根据复合地基理论,采用分层总和法计算水泥搅拌桩复合地基沉降。经过对比分析,加固区沉降采用复合模量法,下卧层沉降采用压力扩散法。针对滨海新区软土地基特点,利用Matlab进行编程计算,分析各因素对沉降的影响。结果显示参数的改变对沉降计算结果有较大的影响。

Based on composite foundation theory, layering summation is used in computation of composite foundation settle- ment of cement mixing-soil pile. After comparison, composite modulus is used in reinforced area settlement, while pressure diffusion is used in substratum settlement. According to the foundation characteristics of Binhai New Area, MATLAB is used in programming and computing, and each factor＇ s effect on the settlement is analyzed. Result shows that the calcula- tion parameters have great effects on the result.