华南地震2016，Vol.36Issue(2)：77-83,7.DOI:10.13512/j.hndz.2016.02.012
广西红粘土动力非线性参数统计分析
The Statistical Analysis of Nonlinear Dynamic Parameters of Guangxi Laterite
摘要
Abstract
The paper studies the free resonance vibration column test results of 189 Guangxi laterite samples by mathematical statistic methods. The results show that the variation of dynamic shear modulus ratio of Guangxi laterite in the middle strain range ( 5í10-4~1í10-3) is great with no law in damping ratio variability; in R software, the paper fits the experimental data in nonlinear way by using the Davidenkov model, and statistical data show good fitting effect, which an be used as recommended values for the dynamic nonlinear parameter of Guangxi laterite; it was indicated that the dynamic shear modulus ratio of Guangxi laterite was at middle level and the damping ratio of Guangxi laterite was smaller by comparing with the recommended value of cohesive soils in published articles.关键词
统计分析/红粘土/动剪切模量比/阻尼比/动力非线性Key words
Statistical analysis/Laterite/Dynamic shear modulus ratio/Damping/Dynamic nonlinear分类
建筑与水利引用本文复制引用
罗丹鹏,张忠利..广西红粘土动力非线性参数统计分析[J].华南地震,2016,36(2):77-83,7.基金项目
广西壮族自治区地震局科研项目“广西红粘土动力非线性特征研究”(2014008) （2014008）
