| 严寒地区村镇给水管道周围土壤温度场的数值模拟 |
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| 引用本文： | 白莉,;王炎,;刘晓龙. 严寒地区村镇给水管道周围土壤温度场的数值模拟[J]. 吉林建筑工程学院学报, 2014, 0(3): 45-48 |
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| 作者姓名： | 白莉, 王炎, 刘晓龙 |
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| 作者单位： | [1]吉林建筑大学市政与环境工程学院,长春130118; [2]吉林建筑大学土木工程学院,长春130118 |
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| 摘 要： | 开展埋地管道周围土壤温度场变化的研究,对于解决地处严寒地区的东北广大农村给水冬季经常发生给水管道冻胀现象具有重要意义.本文在建立浅理外加保温层给水管道与周围土壤非稳态传热,以及土壤自身导热的物理模型基础上,利用Matlab-PDE工具箱进行求解,分析浅埋保温给水管道运行情况及周围土壤温度场随时间变化情况.结果表明,这种浅埋外加保温层的给水管道防冻胀技术,可以基本解决给水管道在冬季运行时发生的冻胀现象.
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| 关 键 词： | 土壤温度场 冻胀现象 给水管道 非稳态传热 Matlab-PDE工具箱 |
Numerical Simulation of Soil Temperature Field Around the Rural Water Supply Pipe in Severe Cold Area |
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| Affiliation: | BAI Li,WANG Yan, LIU Xiao-long( 1： School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun, China 130118; 2： School of Civil Engineering, Jilin Jianzhu University, Changchun, China 130118) |
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| Abstract: | On the basis of the establishment of the physical model of shallow buried water supply pipe with external thermalinsulation layer unsteady heat transfer, using the Matlab - PDE toolbox for solving. Analyzing the operation of shallow buried insulating water supply pipe and temperature field around the soil changes over time. Results show that this kind of shallow buried and thermal insulation layer of the water supply pipe run three months, the temperature of the outer wall of the insulation layer is 3 ℃ and it can basically solve frost heave phenomena of water supply pipe |
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| Keywords: | soil temperature field frost heaving water supply pipe unsteady heat transfer Matlab - PDE toolbox |
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