| 软弱土流变特性试验研究 |
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| 引用本文： | 唐亮,吴敏之.软弱土流变特性试验研究[J].路基工程,2010,0(5):106-108. |
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| 作者姓名： | 唐亮 吴敏之 |
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| 作者单位： | 湖南交通职业技术学院路桥系410004 |
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| 摘 要： | 利用室内三轴流变试验,研究北京地区粉质粘土在不同应力水平下的蠕变特性,试验结果表明,该类软弱土具有较明显的变形时效性。通过分析蠕变曲线的规律,选择广义开尔文五单元理论模型和时间硬化经验蠕变公式来描述该类软弱土的流变特性,并达到了良好精度,建立了适合北京地区典型软弱土的流变理论模型和经验模型。
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| 关 键 词： | 流变试验 蠕变变形 参数拟合 流变模型 |
| 收稿时间： | 2019-11-02 |
Experimental Test on Rheological Properties of Soft Soil |
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| Authors: | TANG Liang WU Min-zhi |
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| Affiliation: | (Department of Road and Bridge,Hunan Communication Occupational and Technical College,Changsha 410004,China) |
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| Abstract: | Through indoor three-axial rheological test,creep properties of silty clay are studied under different stresses in Beijing area.It is shown that such soft soil has obvious deformation depending on time.Through analyzing the rule of creep curve,rheological properties of such soft soil is described with generalized Kelvin Model based on five element theory and empirical creep formula based on time hardening,reaching good precision.Thus rheological theoretical model and empirical model suitable for the typical soft soil in Beijing area has been established. |
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| Keywords: | rheological test creep deformation parameter fitting rheological model |
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