西北地震学报2011，Vol.33Issue(z1)：366-371,6.
土体非线性参数变异性与地表响应的概率关系
The Probability Relationship between Variability of Soil Nonlinear Parameters and Ground Response
摘要
Abstract
Since soil nonlinear parameters show dramatic variability, many geotechnical problems relating to the soil nonlinear parameters are influenced by their variabilities. The relationship between the probabilities of site soil nonlinear parameters the probabilities of and surface ground acceleration responses is studied by numerical method. Results show that, the relationship between the probability of soil dynamic modulu ratio and the site responses changes in different frequency bands of the response spectra. For cohesive soil in the period interval of 0.01 s to 0.8 s and for non-cohesive soil in the period of 0.02 s to 0.7 s, the both probabilities show approximately linear relationship. The probability of soil damping ratio and that of ground surface acceleration response show remarkably linear relationship with same probability in all spectrum. And the probabilities of damping ratio and the probabilities of the response spectra for both cohesive and non-cohesive soils show obvious linear relationship in the period of 0.01 s to 6.0 s.关键词
动剪切模量比/阻尼比/地表加速度反应谱/概率关系/非线性参数Key words
Soil dynamic modulus ratio/Soil damping ratio/Surface ground acceleration responses/Probability relation/Nonlinear parameter分类
建筑与水利引用本文复制引用
李波,孙锐,袁晓铭,陈红娟..土体非线性参数变异性与地表响应的概率关系[J].西北地震学报,2011,33(z1):366-371,6.基金项目
中国地震局工程力学研究所基本科研业务费专项(2009B01) （2009B01）
973计划(2007CB714201) （2007CB714201）
