【摘要】 分析了试验单位N用传统的和试验单位S用沈珠江概化Hardin模型整理出的坝料动参数的差别的原因,这是由于试验单位S测试的动应变γd的范围相对较窄(5×10-5~5×10-3),最大动剪模Gdmax非实测而是推求所得.虽然概化模型不能精确反映动剪模Gd、阻尼比λ与动应变γd的动本构关系,但在试验单位S的γd测试范围(5×10-5~5×10-3)仍能较好地反映动本构关系.经理论和计算证明,该段的本构关系对地震反应如加速度反应的计算结果起决定作用,所以认为沈珠江概化Hardin土动模型仍是较为实用的.更多还原

【Abstract】 The reasons causing the difference are analyzed between the experimental data given by laboratory N with traditional Hardin Model and by laboratory S with Simplified SZJ′s Hardin Model(Hardin Soil Dynamic Constitutive Relation),and it is pointed out the main reason is that the dynamic strain′s measuring scope of laboratory S is relatively narrow,ranging from 5×10-5～5×10-3 or so,and the maximum dynamic modulus Gdmax is conjectured,not measured.Although the simplified model can not accurately reflect relations of Gd～γd and λ～γd where Gd is dynamic modulus and λ is damping ratio,the relations in γd measured scope by laboratory S are fairly reflected.Proved by reasoning and computation,the relations of Gd～γd and λ～γd in γd measured scope 5×10-5～5×10-3 can determine decisively the responding acceleration,so SZJ′s Simplified Hardin Soil Dynamic Constitutive Relation is still practicable.更多还原