摘要
古城煤矿3206综放工作面平均采深1190m,煤层和顶板均具有强冲击倾向性。现通过指数诊断法对该工作面的冲击地压发生的可能性进行研究,经计算该工作面冲击地压发生的可能性指数U=0.97,可判断出该面具备了发生冲击地压的应力条件,具有发生冲击地压的危险。
The 3206 fully-mechanized caving mining of the Gucheng coal mine is depth of 1190 m on average,and the coal seam and roof has strong impact bias. Now through the index of diagnosis for the possibility of rock bursts occurred in the working face was studied. The probability index of rock bursts occurred in the working face U = 0. 97 by calculating. To determine the surface with the occurrence of percussive ground pressure stress condition,has the danger of rock bursts.
出处
《山东煤炭科技》
2014年第3期89-90,共2页
Shandong Coal Science and Technology
关键词
冲击地压
可能性指数法
评价
隶属度
rock burst probability index method evaluation membership
