摘要
为实现被保护层回采区域安全、快速、高效地掘进与回采,某矿开采7煤层,对12煤层起到卸压保护作用,7煤层保护煤柱的影响形成卸压区及煤柱影响区。通过对不同影响区域内的煤体制定合理的防突措施及防突措施效果检验或验证,采用理论分析和现场考察,结合1201回采区域具体开采工程实践,总结出保护层开采后区域防突措施方法经验。
To achieve safe, fast and efficient excavation and mining of protective layer, mining 7# coal seam played an unloadingpressure protective role to 12# coal seam, the effect of coal pillar formed distressed zone and coal pillar affected zone. Reasonableoutburst prevention measures and gas outburst effect test were made for the coal in different affected areas, by theoretical analysisand field investigation, combining with mining engineering practice of 1201 mining area, the regional outburst prevention methodsand experience are summarized after the protective layer mining.
出处
《煤矿安全》
北大核心
2017年第4期164-167,共4页
Safety in Coal Mines
关键词
保护层开采
煤层瓦斯突出
卸压
防突措施
回采区域
protective layer mining
coal and gas outburst
pressure relief
outburst prevention measure
recovery area
