通気による岩盤の冷却効果について

抄録

By utilizing the periodic (trigonometric) function to the temperature of air current and being as a parameter the lapse of the time since the beginning of ventilation, this paper gives two mathematical solutions about the gallery temperature which is kept constant initially. The one is a temperature distribution in therock surrounding a gallery, the other is the cooling effect of the rock surface in a downwind direction. The later is an approximate calculation so that there are some errors to be annexed. But it is impossible to estimate its value for there is no complete solution moreover it is unable to observe above effect actually.
Generally speaking author emphasize that the solutions are very simple comparing the public one and are practical for mining engineers to estimate the various cooling effects of the gallery surface by ventilation.