摘要
从煤与瓦斯突出发生机理角度分析了煤与瓦斯突出和工作面前方卸压区大小之间的关系。阐述了高压磨料射流割缝技术防突原理,并在煤巷掘进工作面进行了实践,结果表明,高压磨料水射流割缝技术能有效消除突出,提高掘进速度。
From the point of view of coal and gas outburst occurred mechanism, the relationship between the coal and gas outburst and the size of the stress-relaxation area in front of the working face was analyzed,and the principle of high-pressure abrasive hydraulic cut- ting seam for relieving pressure and preventing outburst technology was elaborated. The technology was also applied in coal roadway of the driving face. The results show that using the technology can avoid coal and gas outburst accident and improve the driving speed.
出处
《中州煤炭》
2013年第7期98-100,共3页
Zhongzhou Coal
关键词
高压磨料水射流割缝
煤与瓦斯突出
卸压防突
high-pressure abrasive hydraulic cutting seam
coal and gas outburst
stress-relaxation and outburst prevention
