Analysis on rock burst danger during fully-mechanized caving coal face passing fault
The SOS microseism monitoring system was applied to monitor the microseismic events all time occurred in the coal and rock mass near the fault area. Variation features of microseismic energy releasing and microseismic frequency were analyzed in detail. And a numerical simulation method was used to the abutment stress distribution during coal face passed fault, which was compared with microseism monitored results. The SOS microseism monitored results showed that microseismic events in the fault area happened obviously. And when the coal face neared to the fault, total value of energy released by the microseismic activities steadily increased, and the maximum energy peak also rapidly increased. Before the strong shock occurred, there was a period of weak seismic activities, which could be used to forecast the danger of rock burst.
Rock burst microseism monitoring system fault numerical simulation
CHEN Xuehua LI Weiqing YAN Xianyang
College of Resources and Environment Engineering, Liaoning Technical University, Fuxin, China Dongtan coal Mine, Yanzhou Coal Mining Company Limited, Zoucheng, China
国际会议
The First International Symposium on Mine Safety Science and Engineering (首届矿山安全科学与工程学术会议)
北京
英文
1001-1007
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）