摘要
理论研究和现场应用表明,保护层开采和预抽煤层瓦斯是防治煤与瓦斯突出最有效、最经济的区域性措施。对于采用保护层开采技术的矿井,首先必须计算出其卸压范围,然后才能在该区域内设计瓦斯抽采系统和布置作业工作面。本文依据煤岩卸压变形理论和煤层瓦斯赋存特性,结合安徽皖北煤电公司五沟煤矿保护层开采的实践应用,确定了本矿煤层开采的合理顺序,得出保护层开采后的卸压范围.研究结果可为现场瓦斯防治提供参考依据。
It was testified based on theory research and spot application that exploiting protection layer and pre - draining gas were the best effectively and economically measures for region coal and gas outburst control. For the mines that are applying this technology, the first step is obtaining press released area, then gas drainage system and working faces can be designed. According as distortion mechanism of wall rock and occurrence characteristic of gas, with a view to practice application of protection layer exploiting in Wugou coal mine Anhui wanbei coal and electricity group, reasonable coal seam mining sequence is analyzed and press released area is calculated out in this paper. The research result will provide some reference basis for gas control in spot.
出处
《华北科技学院学报》
2012年第1期36-39,共4页
Journal of North China Institute of Science and Technology
基金
中央高校基本科研业务费资助(项目编号:AQ1201B)
关键词
保护层开采
煤与瓦斯突出
卸压范围
瓦斯防治
protection layer exploiting
coal and gas outburst
press released area
gas control
