Research Article

Research on the Source Mechanism and Source Prevention and Control System of Deep Rock Burst

Table 2

Microseismic occurrence.

TimeMagnitudePosition

1st Sept.1.39Behind the goaf
5th Sept.1.07Slant axis in transport lane
22th Sept.1.34Slant axis
14th Oct.0.93The back goaf 100 m to the right and 80 m below the eighth coal seam, which has no effect on the working face
18th Oct.0.68A slight damage to the roof support in front of the air inlet tunnel
20th Oct.0.7Outside roadway
23th Oct.0.71The slant axis of the eighth coal seam outside the air inlet and return roadway
24th Oct.0.85Near the fault of the stop line outside the working face
25th Oct.0.86Outside of working face (uphill side)
10th Dec.0.66Track lane of the eighth coal seam
11th Dec.1.1200 m below the eighth coal seam at the edge of the back goaf
12th Dec.0.77A slight damage to the roof support in front of the air inlet tunnel
12th Dec.0.81A slight damage to the roof support in front of the air inlet tunnel
15th Dec.0.79Intersection outside the return airway