Evaluation Method for Rock Burst Hazards in Strip Filling of Working Faces in Deep Coal Mines
Yang Chen,
Xikui Sun,
Xiufeng Zhang
et al.
Abstract:The impact risk evaluation for the strip filling of working faces has always been a research hotspot and a difficulty in the field of rock bursts. In this paper, the concept of the critical filling rate is first proposed, and the criterion for identifying the impact risk of the strip filling of a working face is established. Then, the membership function of coal body stress and the coal seam elastic energy index to impact risk was established, and the classification index of the impact risk grade was formed. O… Show more
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