Abstract:In order to effectively measure the effective radius of hydraulic punching, the stress monitoring system is used to monitor the coal stress around the borehole in the process of bedding hydraulic punching in Xuehu Coal Mine, analyze the stress evolution characteristics and determine the effective radius of hydraulic punching. The research results show that: (1) During the formation of the line along the line, the stress of the coal body closer to the borehole decreases, while the stress of the coal body remains stable if it is far from the borehole; (2) After the line is formed, the distance from the borehole is different. The stress change from the coal body is different in time and space. The closer to the borehole, the earlier the coal body stress changes, the trend is simple, and the magnitude of the change is larger; the farther away from the borehole, the more lagging the stress change of the coal seam, and the trend of change is complex, the smaller the amplitude of change; (3) According to the change of coal body stress, the effective influence radius of burrowing along the bedding line is 2.4m. The research results have important guiding role for the safe and efficient implementation of the hydraulic punching measures along the bed in Xuehu Coal Mine, and are of great significance for the formulation of outburst prevention measures and the evaluation of outburst elimination effects in this coal seam area.