Mechanism research on coal and gas outburst during vibration blasting

被引：47
|
作者：
Nie Baisheng [1 ]
Li Xiangchun
机构：
[1] China Univ Min & Technol Beijing, Sch Resource & Safety Engn, Beijing 100083, Peoples R China
来源：
SAFETY SCIENCE | 2012年 / 50卷 / 04期
关键词：
Coal and gas outburst; Vibration; Adsorption; Fracture; MINES;
D O I：
10.1016/j.ssci.2011.08.041
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The coal and gas outburst results from plenty of factors, while vibration is the most important factor among them. 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. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：741 / 744
页数：4
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