摘要
通过总结1018顺槽底板抽放巷经验,合理缩短底板岩巷与顺槽两者之间的平距与垂距,在符合相关规定及保证抽放效果的前提下,大大减少了钻孔施工量及钻孔施工时间,提高了打钻的精度,从而增加了被卸压巷道瓦斯预抽时间,同时也节约了瓦斯抽放成本,提高了顺槽掘进进尺量,缓解了建新矿工作面接替紧张的局面。
The authors summarize the experiences of roadway drainage in the floor of 1018 crossheading by reasonably shortening the horizontal and vertical distance between rock gangway and entry in floor on the premise of complying with the relevant provisions and ensuring drainage effects,which can greatly reduce the drilling construction quantity and time with improved drilling precision,increase the time of gas pre-drainage on pressure-released roadway with cost saving of gas suction,and alleviate the face replacing tension situation with improved tunneling footage in crossheading
出处
《江西煤炭科技》
2011年第2期41-43,共3页
Jiangxi Coal Science & Technology
关键词
底板岩巷布置
优化设计
穿层钻孔
瓦斯抽放
防突
layout of floor rock roadway
optimal design
drill through beds
gas drainage
outburst prevention
