巷道调热圈半径及其温度场分布的数值模拟研究  

Numerical simulation research on radius and temperature field of roadway heat-adjusting layer

作　　者：何发龙[1,2] 魏亚兴[2] 胡汉华[2] 王娟 

机构地区：[1]天津城建大学能源与安全工程学院,天津300384 [2]中南大学资源与安全工程学院,湖南长沙410083 [3]中汇国际保险经纪股份有限公司,北京100022

出　　处：《铁道科学与工程学报》2016年第3期538-543,共6页Journal of Railway Science and Engineering

摘　　要：为探究巷道围岩传热过程中调热圈温度场的分布,建立25组数值试验模型模拟调热圈传热过程,并选定原岩温度、调热圈半径、热导率为影响因素,以巷道壁面温度为目标因子,进行正交试验分析,得出各因素对壁面温度的影响大小依次为原岩温度>热导率>调热圈半径。运用统计分析,拟合出壁面温度热力学计算式,其相关系数达到0.996。同时,在前期研究基础上,探讨巷道通风时间因素和调热圈半径之间联系,得到调热圈半径与通风时间的拟合计算式。将2个计算式联立可以作为巷道壁面温度表征公式,用于预测巷道壁面温度。To study the temperature field of surrounding rock during its heat transfer process, 25 sets of numeri-cal experiment models were established to simulate the heat transfer process of heat -adjusting layer. The origi-nal rock temperature, heat -adjusting radius and thermal conductivity was selected as influence factors, and theroadway wall temperature was considered as target factor. According to the orthogonal analysis, it is concludedthat the effects on the wall temperature were ranked in the order of original rock temperature 〉 thermal conduc-tivity 〉 heat -adjusting layer radius. Based on the statistics analysis, the wall temperature thermodynamic cal-culation formula was fitted, and its correlation coefficient was 0. 996. Finally, the ventilation time factor wasbroaden, then the relationship formula between heat -adjusting layer radius and ventilation time was fitted. Thetwo calculation formulas can be used for evaluating roadway wall temperature.

关 键 词：数值模拟 围岩传热 调热图 壁面温度 正交试验 线性回归 

分 类 号：X936[环境科学与工程—安全科学]