底板巷在坪湖矿西三采区的成功运用

Successful Application of Floor Roadway in West No.3 Mining Area of Pinghu Colliery

680工作面位于西三上采区,因底板巷的穿层钻孔,布孔均匀、具有连续性的特点,成孔率高、抽放效果好。为此运用底板巷穿层钻孔替代顺层钻孔预抽瓦斯,以提高煤巷掘进速度,缓解采掘平衡,确保安全生产。

Located at west No. 3 mining area, 680 working face is characteristic of drilling uniformity and nuity, high drilling rate and good drainage effect because of wear layer drilling of the floor roadway, The introduces the application of wear layer drilling of the floor roadway instead of gas pre--drainage bedding, can improve roadway drilling speed, release drilling balance and ensure safety production.