摘要
受超前卸压影响,采煤工作面在回采过程中存在片帮和回风瓦斯增大现象,基于顺层抽采钻孔“一孔三用”原则,以张集矿1613(3)工作面为研究对象,充分将两巷顺层抽采钻孔及工作面浅孔注水相结合,有效加固了煤体,解决了煤壁超前片帮问题,减少了工作面回风瓦斯含量,还降低了工作面扬尘浓度,取得了较好效果。
Affected by pressure relief in advance,rib spalling and gas increase phenomenon appear during the mining process of at working face.Based on the principle of“three functions of one hole”of bedding borehole,taking the 1613(3)working face as research object,the combination of bedding borehole in two alleys and shallow-hole water infusion at working face can effectively strengthen the coal body and solve the problem of rib spalling in advance,and also reduce the gas content and the coal dust concentration of return face,which achieves good results.
作者
关玉祥
Guan Yuxiang(Huainan Safety Production Publicity and Education Center,Huainan,Anhui 232001)
出处
《江西煤炭科技》
2021年第3期162-163,167,共3页
Jiangxi Coal Science & Technology
关键词
顺层钻孔
瓦斯防治
防尘
钻孔注水
bedding borehole
gas prevention
dust prevention
borehole water injection
