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收集了大量近年来国内外公开发表的关于动剪切模量比和阻尼比的文章,提取了文中关于动剪切模量比和阻尼比随剪应变变化的试验数据,选择了统一的经验模型对粘土、淤泥质土、砂土及岩石的试验数据进行回归分析,得到了针对不同土及岩石的回归方程。将拟合结果同国内外学者给出的实测值平均曲线进行对比,验证了所选择经验模型和拟合曲线的可靠性。本文所选用的试验数据包含了新近发表文章中的试验数据,因此,本文的拟合结果可为岩土及地下工程的抗震分析提供更有意义的帮助。
A large number of published articles about dynamic shear modulus ratio and damping ratio were collected at home and abroad in recent years. The experimental data of dynamic shear modulus ratio and damping ratio with shear strain were extracted. A unified empirical model Regression analysis of clay, silt soil, sand and rock test data obtained for different soil and rock regression equation. The fitting result is compared with the average curve of measured value given by domestic and foreign scholars, which verifies the reliability of the selected empirical model and fitted curve. The test data selected in this paper contains the experimental data in the recently published article. Therefore, the fitting results in this paper can provide more meaningful help for the seismic analysis of geotechnical and underground engineering.