| 路基冻胀过程的温度效应 |
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| 引用本文： | 张树光,李选海,杨育红.路基冻胀过程的温度效应[J].辽宁工程技术大学学报(自然科学版),2005,24(4):546-548. |
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| 作者姓名： | 张树光 李选海 杨育红 |
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| 作者单位： | 辽宁工程技术大学,土木建筑工程学院,辽宁,阜新,123000;大连海军舰艇学院,基础部,辽宁,大连,116000;上海汇宁华园房产发展有限公司,上海,200030 |
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| 基金项目： | 辽宁省博士启动基金资助项目(001083) |
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| 摘 要： | 基于连续介质力学和热力学理论，建立了路基水分迁移过程的动力学模型。对冻土地区路基的温度场分布进行数值模拟分析，初步探讨了路基温度随时间和深度变化的关系。研究了温度梯度对冻胀的影响，试验结果表明，温度梯度与冻胀量成反变关系，因此采用试验人工冻结研究自然冻结时应充分考虑温度梯度的影响。这对于正确研究路基的冻胀现象，具有着重要的理论意义和实际意义。
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| 关 键 词： | 高速公路 人为水土流失 防治技术 水土保持 |
| 文章编号： | 1008-0562(2005)04-0546-03 |
| 修稿时间： | 2003年8月26日 |
Temperature effect in process of frost heave in roadbed |
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| ZHANG Shu-guang,Li Xuan-hai,YANG Yu-hong.Temperature effect in process of frost heave in roadbed[J].Journal of Liaoning Technical University (Natural Science Edition),2005,24(4):546-548. |
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| Authors: | ZHANG Shu-guang Li Xuan-hai YANG Yu-hong |
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| Abstract: | Based on continuum mechanics and the thermodynamics theory,a dynamics model of the process of water content moving boiling in roadbed is established. Numerical simulation analysis is carried out of the temperature field distribution to the frozen area roadbed. The relationship of roadbed temperature initially adapts to time and depth is discussed and the effect of temperature gradient to the frozen heave is studied, The experiment makes known that the temperature gradient against frozen heave is measured into contrary-change relationship. Hence, the effect of temperature gradient should be considered when adopting artifical frosting studied natural frosting. It would be theoretic and practical significance to the frozen heave of roadbed. |
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| Keywords: | temperature effect temperature field temperature gradient numerical simulation |
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