| 新疆天山公路道路翻浆温度场的数值模拟分析 |
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| 引用本文： | 袁建议.新疆天山公路道路翻浆温度场的数值模拟分析[J].华东交通大学学报,2007,24(1):32-34. |
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| 作者姓名： | 袁建议 |
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| 作者单位： | 同济大学,道路与交通工程教育部重点实验室,上海,200092 |
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| 摘 要： | 温度差异是高原冻土地区公路路基发生翻浆的一个重要因子。通过建立的冻土路基温度场的控制方程,建立计算物理模型和数值模拟计算模型,首先模拟气候因素变化过程,得到不同时期冻土路基温度场分布,温度场随季节的变化反映了路基冻结锋面的迁移,从而分析了关键点的温度差异。提出了将换填部分冻结土与阻断水分迁移路径的抗浆结构相结合的综合防治技术设想,这对进一步研究路基翻浆的治理技术有重要的理论意义.
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| 关 键 词： | 翻浆 温度场 冻土路基 路基变形 有限元 |
| 文章编号： | 1005-0523（2007）01-0032-03 |
| 收稿时间： | 2006-06-15 |
| 修稿时间： | 2006年6月15日 |
Numerical Simulation Analysis on Temperature Field for Tianshan-Xinjiang Highway Tympanites Roadbed |
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| YUAN Jian-yi.Numerical Simulation Analysis on Temperature Field for Tianshan-Xinjiang Highway Tympanites Roadbed[J].Journal of East China Jiaotong University,2007,24(1):32-34. |
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| Authors: | YUAN Jian-yi |
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| Institution: | Key Laboratory of Road and Traffic Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China |
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| Abstract: | The diversity of temperature is an important factor for tympanites to occur in highway roadbed.The physical model and calculating model of temperature field are founded according to the founded controlling equation in this paper. By simulating the changing progress of climate features,the temperature field of roadbed in permafrost region in different season is got.The variations of temperature field with time indicate the variations of freezing front-surface.Then,some results are got by analyzing the diversity of temperature of key points. The last,the technology assumption of effectively controlling tympanites which combines replacing part frozen soil and resisting highway tympanites structure is brought up.It has significant senses for further research of tympanites' controlling technology. |
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| Keywords: | tympanites temperature field frozen soil roadbed roadbed deformation finite element |
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