| 短时动三轴试验与红粘土体积动剪应变门槛 |
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| 引用本文： | 刘晓红,杨果林,方薇.短时动三轴试验与红粘土体积动剪应变门槛[J].工程勘察,2011(3):1-5. |
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| 作者姓名： | 刘晓红 杨果林 方薇 |
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| 作者单位： | 中南大学土木建筑学院;湖南理工学院土建系; |
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| 基金项目： | 国家自然科学基金资助项目(50778180); 铁道部科技研究开发计划项目(2005K002-B-2-1) |
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| 摘 要： | 针对武广高速铁路无碴轨道红粘土路堑基床的动力稳定性问题,利用改造后的应力控制式动三轴仪代替目前国内尚无的剪应变控制式共振柱仪,测得了不同试验条件下红粘土体积动剪应变门槛值.提出了一套完整的短时动三轴试验方案和试验数据处理方法,为体积动剪应变门槛的确定开辟了新的试验途径.探讨了含水比、围压、固结比对体积动剪应变门槛的影响...
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| 关 键 词： | 体积动剪应变门槛 短时动三轴试验 对比分析 红粘土 |
Short-time cyclic triaxial tests and volume dynamic shear strain threshold of red clay |
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| Liu Xiaohong,Yang Guolin,Fang Wei.Short-time cyclic triaxial tests and volume dynamic shear strain threshold of red clay[J].Geotechnical Investigation & Surveying,2011(3):1-5. |
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| Authors: | Liu Xiaohong Yang Guolin Fang Wei |
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| Affiliation: | Liu Xiaohong1,2,Yang Guolin1,Fang Wei1(1.School of Civil Engineering and Architecture of Central South University,Changsha 410075,China,2.Department of Civil Engineering and Architecture of Hunan Institute of Science and Technology,Yueyang 414000,China) |
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| Abstract: | In view of the dynamic stability of red clay cutting bed under the ballastless track of Wuhan-Guangzhou high-speed railway,the stress-controlled dynamic triaxial apparatus is utilized to test volume dynamic shear strain threshold of red clay in different experimental conditions,replacing the shear strain-controlled resonant column device not existing at home now.A complete set of short-time cyclic triaxial testing program and test data processing methods are presented,it opens up a new test way of determini... |
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| Keywords: | volume dynamic shear strain threshold short-time cyclic triaxial tests contrastive analysis red clay |
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