ABSTRACT
Large seasonal variations in the temperature of the ventilating air cause changes in the original thermal field around a mine airway, through heat and mass exchange between the air and the surrounding medium. These thermal interactions have major influence on climatic quality as well as on the stability of the mine openings. An analysis of mine thermal regime allows engineering of ventilation design layouts to provide the control of the micro-climate. This paper presents an analysis of thermal regime around a deep mine airway in permafrost. From the analysis, it can be concluded that a physical model, which is asymmetric in the Y-direction has no impact on the temperature distribution in the domain surrounding the mine airway. The results also indicate that active control of the mine thermal regime would be required with a higher priority where the rockmass material around a mine airway primarily consists of gravel.
