摘要
南凹寺煤业30407下顺槽掘进前期施工完成后的顶板倾斜探水钻孔,存在封孔效果差、钻孔易塌陷、水压大卸压困难等问题。结合矿区内同类型地质条件下水害治理经验,提出了顶板倾斜探水钻孔“两堵一注”配备自动卸压控水装置的封孔工艺,有效解决了原封孔工艺上存在的弊端,确保了探放水钻孔施工和放水作业的安全。
In view of poor sealing effect,collapsed drilling easy to collapse,large water pressure and difficult pressure relief in roof-inclined water detection drilling in the early excavation construction at 30407 entry of Nan'aosi Coal Industry Co.,Ltd.,the author presents the hole sealing technology of"two plugging and one grouting"equipped with automatic-pressure-relief water control device,which can solve the disadvantage of the original hole sealing technology and guarantee the safety of drilling construction and drainage.
作者
冯鹏峥
Feng Pengzheng(Nan'aosi Coal Industry Co.,Ltd.,Qinhe Energy Group Co.,Ltd.,Qinshui,Shanxi 048200)
出处
《江西煤炭科技》
2022年第4期149-151,共3页
Jiangxi Coal Science & Technology
关键词
顶板倾斜探水钻孔
两堵一注封孔工艺
自动卸压控水
roof-inclined water detection drilling
sealing technology with two plugging and one grouting
automatic-pressure-relief water control
