| 重复加载下路基填土的临界动应力和永久变形初探 |
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| 引用本文： | 蔡英,曹新文.重复加载下路基填土的临界动应力和永久变形初探[J].西南交通大学学报,1996,31(1):1-5. |
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| 作者姓名： | 蔡英 曹新文 |
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| 作者单位： | 西南交通大学铁道及道路工程系 |
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| 摘 要： | 本文针对路基填土在列车荷载重复作用下产生永久变形的问题，利用动三轴试验，研究了重复加载条件下，土体的临界动应力和永久应变随加载次数、加载频率和周围压力变化的规律，对高速铁路和重载铁路路基设计有重要的参考价值．
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| 关 键 词： | 路基 临界动应力 永久应变 重复加载 |
Study of the Critical Dynamic Stress and Permanent Strain of the Subgrade-Soil under the Repeated Load |
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| Cai Ying Cao Xinwen.Study of the Critical Dynamic Stress and Permanent Strain of the Subgrade-Soil under the Repeated Load[J].Journal of Southwest Jiaotong University,1996,31(1):1-5. |
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| Authors: | Cai Ying Cao Xinwen |
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| Abstract: | The Permanent deformation of subcode soil under reacted wheel-loading is analyzed by the repeated loading triaxial tot. The vacation of the critical dyllamic stress of subgrade-soil with the change of the loading frequency and the confining stress are studied. The conclusions are siginificant to the design of the subgtade or fotmation of high- speed railways and heavy-haul railways. |
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| Keywords: | subgrade critical dynamic stress Permanent strain repeated load |
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