The High Stress Soft Coal Seam Face Prediction Sensitive Index Critical Value Research
Huainan mining area for the serious outburst Xinzhuangzi B4 soft coal mines in high stress, In order to improve the mining face outburst forecast accuracy, reduce the amount of works against sudden, With the theoretical analysis, lab tests and field trials of the combination of a variety of means, Of pilot area received 56204 B4 coal mining Face of sensitive indicators of the critical value: S0＝4.0kg/m,K1=0.3 mL/(g·min1/2), The test area 1380m mining engineering application results show that the face is not obvious prediction accuracy rate of 100%. Study to determine the indicators and their threshold reasonable and effective, in line with the actual situation of test area, with a certain application value.
Aimin Yang, Jingguo Qu and Xilong Qu
Y. J. Zhang "The High Stress Soft Coal Seam Face Prediction Sensitive Index Critical Value Research", Applied Mechanics and Materials, Vols. 84-85, pp. 224-227, 2011