Research on coal and gas outbursts caused by vibration blasting
Coal and gas outbursts are controlled by plenty of factors, of which vibration is the most important one. Therefore, the influences of vibration acting on gas desorption and coal structure had been conducted. And the mechanism of coal and gas outburst induced by vibration was illustrated through examples. The results showed that the gas desorption accelerates under the action of vibration, and then the gas gradient increases. Meanwhile, vibration would increase and expand fractures in the internal coal body, which aggravates the risk of coal and gas outburst greatly. In conclusion, vibration is a more important factor attributable to coal and gas outburst compared with other coal mining method, mining technology and construction method.
coal and gas outburst vibration adsorption fracture
Nie Baisheng Li Xiangchun
School of Resource and Safety Engineering, China University of Mining & Technology (Beijing), Beijing 100083, China State Key Laboratory of Coal Resources and Safe Mining, Beijing 100083, 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
1342-1346
2011-10-27（万方平台首次上网日期，不代表论文的发表时间）