| 武广客运专线红粘土动力特性试验研究 |
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| 引用本文： | 刘晓红,杨果林,方薇.武广客运专线红粘土动力特性试验研究[J].路基工程,2010,0(6):1-4. |
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| 作者姓名： | 刘晓红 杨果林 方薇 |
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| 作者单位： | 1.中南大学, 长沙 410075 |
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| 基金项目： | 国家自然科学基金，铁道部科技研究开发计划项目 |
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| 摘 要： | 通过对武广客运专线咸宁、泉口工点石灰岩类红粘土进行的大量动三轴试验,得到了不同试验条件下红粘土的Ed-εd曲线、τd-lgNf曲线与动强度指标。探讨了围压、固结比、振次、土性等对红粘土动力特性参数(动强度、动强度指标、动模量等)的影响,并给出相应的影响曲线。验证了红粘土动本构关系仍可用R.L.Kondner双曲线模型进行描述。
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| 关 键 词： | 红粘土 动三轴试验 动强度 动模量 动本构关系 |
| 收稿时间： | 2019-11-10 |
Experimental Study on Dynamic Characteristics of Red Clay in Wuhan-Guangzhou Passenger Dedicated Line |
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| Authors: | LIU Xiao-hong YANG Guo-lin FANG Wei |
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| Affiliation: | LIU Xiao-hong1,2,YANG Guo-lin1,FANG Wei1 (1.Central South Uuniversity,Changsha 410075,China,2.Hunan Institute of Science and Technology,Yueyang 414000,Hunan,China) |
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| Abstract: | After a lot of dynamic triaxial test were done on limestone red clay in Xianning and Quankou construction site of Wuhan-Guangzhou Passenger Dedicated Line,the Ed-εd curve,τd-lgNf curve and dynamic strength index of red clay have been obtained under different conditions.This paper discusses the influence of confining pressure,consolidation ratio,vibrating frequency and soil property on dynamic characteristics of red clay（such as dynamic strength,dynamic strength index,dynamic modulus）,and gives the corresponding influencing curve,which verifies that dynamic constitutive relation of red clay can be described with R.L.Kondner hyperbolic model. |
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| Keywords: | red clay dynamic triaxial test dynamic strength dynamic modulus dynamic constitutive relation |
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