Simulation Experiment Study on Freezing Temperature Field of Mine Axial Freeing Inclined Shaft

In order to have the freezing temperature field distribution law of the mine axial freezing inclined shaft, a certain geometrical scaling physical simulation experiment was applied to the full system study on the development law of the freezing temperature filed of the mine inclined shaft. The electric thermo-couples set in th e model were applied to monitor and measure the variation law with the freezing time of the freezing temperature fields at the arch roof, sidewall and floor of the vertical wall and arch inclined shaft. The temperature distribution features of the different key interface were analyzed. The inner development speed of the main interface measu red was faster than the external development speed.At the turning corner between the sidewall and floor, the development speed of the freezing wall was faster than th e other interface.At the connection face between the arch roof and the sidewall, the development speed of the freezing wall was closed to the development speed of the sidewall.