煤矿安全2017，Vol.48Issue(2)：56-59,64,5.DOI:10.13347/j.cnki.mkaq.2017.02.015
矿井围岩温度场分布规律
Distribution Laws of Temperature Field in Mine Surrounding Rock
摘要
Abstract
Based on the theory of solid heat conduction,the mathematical model of heat transfer in the surrounding rock of a mine was built by neglecting the influence of some minor factors.Using COMSOL multiphysics simulation software,the temperature field distribution of surrounding rock of a mine was obtained.Furthermore,the influence of ventilation time,thermal conductivity coefficient of surrounding rock,radial displacement of surrounding rock,air temperature and original rock temperature on mine temperature field were discussed.The study finds that the radius of heat-regulating circle is mainly determined by ventilation time and thermal conductivity coefficient of surrounding rock.The radius of heat-regulating circle increases with the increasing of ventilation time and thermal conductivity coefficient.The temperature gradient of surrounding rock is mainly determined by ventilation time,air temperature and original rock temperature.The temperature gradient of surrounding rock increases with the decreasing of ventilation time and air temperature and the increasing of original rock temperature.关键词
围岩/传热/温度分布/调热圈/温度梯度Key words
surrounding rock/heat transfer/temperature distribution/heat-regulating circle/temperature gradient分类
矿业与冶金引用本文复制引用
陈柳,韩斐..矿井围岩温度场分布规律[J].煤矿安全,2017,48(2):56-59,64,5.基金项目
国家自然科学基金资助项目(51404191) （51404191）
