Distribution Laws of Temperature Field in Mine Surrounding Rock
CHEN Liu
HAN Fei
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.
Keywords：surrounding rockheat transfertemperature distributionheat-regulating circletemperature gradient
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 56-59,64 )