松散煤层工作面煤壁高压注水防片帮技术研究  

作　　者：盛磊 

机构地区：[1]安徽省淮北矿业集团芦岭煤矿,安徽淮北235000

出　　处：《科技创新与应用》2022年第3期149-151,共3页Technology Innovation and Application

摘　　要：针对芦岭煤矿Ⅲ811松散煤层工作面煤壁片帮严重问题,采用工作面煤壁高压注水防片帮技术,综合确定Ⅲ811松散煤层工作面煤壁注水参数,包括注水孔深度10 m、注水孔间距7.5 m、注水压力7.5 MPa。结果表明,芦岭煤矿Ⅲ811工作面注水在采用上述参数40 h(5个检修班)后,两注水孔间煤体能够达到有效湿润范围,注水后减少了煤壁片帮和冒顶,现场应用效果较好。In view of the serious problem of coal wall slope inⅢ811 loose coal seam face in Luling Coal Mine,the coal wall water injection parameters ofⅢ811 loose coal seam face are determined comprehensively by using high pressure water injection technology,including water injection hole depth 10 m,water injection hole spacing 7.5 m,water injection pressure 7.5 MPa.The results show that when the above parameters are adopted in the water injection ofⅢ811 working face in Luling Coal Mine,after 40 hours(5 maintenance classes),the coal body between the two water injection holes can reach an effective wetting range,and the coal wall slope and roof fall are reduced after water injection,and the field application effect is better.

关 键 词：松散煤层 煤壁片帮 高压注水 注水参数 

分 类 号：TD714.4[矿业工程—矿井通风与安全]