| 多排管冻土帷幕平均温度特征与计算方法 |
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| 引用本文： | 彭益成,胡向东,丁文其.多排管冻土帷幕平均温度特征与计算方法[J].低温建筑技术,2009,31(10):89-91. |
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| 作者姓名： | 彭益成 胡向东 丁文其 |
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| 作者单位： | 1. 同济大学,地下建筑与工程系,上海,200092
2. 同济大学,地下建筑与工程系,上海,200092;同济大学,岩土及地下工程教育部重点实验室,上海,200092 |
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| 摘 要： | 通过数值模拟方法分别研究三、四排管直线冻土帷幕平均温度与冻土帷幕厚度、管排间距、冻结管排列形式以及冻结管排数之间的关系。并且通过分析多排管直线冻土帷幕温度场特征,运用温度场拼接和等效方法提出了一种多排管直线冻土帷幕平均温度的计算方法。通过公式计算结果与数值模拟结果的比较发现,该计算方法具有较好的适用性和较高的准确性。
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| 关 键 词： | 人工地层冻结法 多排管冻土帷幕 平均温度 |
CHARACTERISTICS AND CALCULATION METHOD OF AVERAGE TEMPERATURE FOR MULTI-ROW-PIPE FROZEN SOIL WALL |
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| Affiliation: | PENG Yi-cheng , HU Xiang-dong, DING Wen-qi ( 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China) |
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| Abstract: | Through numerical simulation method this paper studies the relationship of the average temperature of the three/four-row-pipe straight frozen soil wall with the thickness of frozen soil wall,the distance between pipes and rows,the arrangement form of freezing pipes and the row number of freezing pipes respectively.By way of analyzing the temperature field characteristics of multi-rowpipe straight frozen soil wall,this paper proposes a new calculation method of the average temperature by mathematical splicing method and equivalent method.The comparison between the results of calculation method and numerical simulation method proves that the calculation method has a better applicability and a higher accuracy. |
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| Keywords: | artificial ground freezing multi-row-pipe frozen soil wall average temperature |
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