Research on the Acclimatization Test of Miners at High Altitude and Atmosphere Pressure Compensation in Underground Operations

The purpose of this study was to investigate the appropriate numeric range of atmosphere pressure compensation, which can relieve hypoxia of miners working in high-altitude mines. During the research, Miners’ physiological indexes were tested in three stages of acclimatization and the degree of miners’ hypoxia was analyzed. Meanwhile, based on the air pressure measured in four underground levels at all seasons, researchers explored the air pressure changes and influence factors. Mathematical models of the atmosphere pressure compensation were also made. The results show the following points: As the time that miners remained in high-altitude mines passed, their anti-hypoxic capability increased and their blood oxygen saturation index could reach to 90.42±3.43%; the range of atmosphere pressure of underground levels, which was nearly equal indifferent locations of the same face, varied significantly in different seasons and altitudes. And the air pressure in levels changed relatively; the numeric ranges of atmosphere pressure compensation in different levels and seasons were obtained, which provided a new method of calculating the target values of pressurizing or oxygen supplying.