| 管壁温度非恒定条件下单管冻结温度场解析计算 |
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| 引用本文： | 张驰,张涛,韩涛,柏东良. 管壁温度非恒定条件下单管冻结温度场解析计算[J]. 煤炭科学技术, 2012, 40(3): 20-23,82 |
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| 作者姓名： | 张驰 张涛 韩涛 柏东良 |
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| 作者单位： | 1. 中国矿业大学深部岩土力学与地下工程国家重点实验室,江苏徐州,221116
2. 中国矿业大学力学与建筑工程学院,江苏徐州,221116 |
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| 基金项目： | 国家自然科学基金青年科学基金资助项目(40801032) |
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| 摘 要： | With the combination with the similar theory and analytic calculation, the single tube freezing problem under the surface temperature non-constant condition of the freezing tube was fully studied. The ...
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| 关 键 词： | 人工地层冻结 温度场 管壁 相似理论 解析计算 |
Analysis Calculation on Single Pipeline Freezing Temperature Field Under Non-Constant Condition of Pipe Wall Temperature |
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| ZHANG Chi,ZHANG Tao,HAN Tao,BAI Dong-liang. Analysis Calculation on Single Pipeline Freezing Temperature Field Under Non-Constant Condition of Pipe Wall Temperature[J]. Coal Science and Technology, 2012, 40(3): 20-23,82 |
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| Authors: | ZHANG Chi ZHANG Tao HAN Tao BAI Dong-liang |
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| Affiliation: | 1(1.National Key Lab of Deep Rock and Soil Mechanics and Underground Engineering,China University of Mining and Technology, Xuzhou 221116,China;2.School of Mechanics and Architecture Engineering,China University of Mining and Technology,Xuzhou 221116,China) |
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| Abstract: | With the combination with the similar theory and analytic calculation,the single tube freezing problem under the surface temperature non-constant condition of the freezing tube was fully studied.The temperature filed distribution law with high accuracy,the radius of the freezing zone,the thermal flux density of the tube wall and the approximate calculation formula of the average temperature in the freezing zone were obtained and the relevant error would not be over 2%.The analysis showed that there would be four main factors influenced to the radius of the freezing zone,the thermal flux density of the tube wall and the average temperature of the freezing zone.Theoretically the paper explained the cause of less influence to the temperature field by the ratio of frozen soil volumetric specific heat to unfrozen soil Lc in the numerical caculation.In combination with the site measured data of the simulation test,the similar analytic solution of the freezing zone radius was verified.The max error between the similar analytic solution and site measured value was 5%. |
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| Keywords: | artificial ground freezing temperature field pipe wall similar theory analysis calculation |
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