管壁温度非恒定条件下单管冻结温度场解析计算
张驰1
张涛2
韩涛1
柏东良1
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,2211162.中国矿业大学力学与建筑工程学院,江苏徐州,221116
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 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/md 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 L 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 %.
关键词：人工地层冻结温度场管壁相似理论解析计算
分类号：TD265.3(矿山设计与建设)
论文发表日期：2012-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：5( 20-23,82 )
英文信息