1) gob caving slit band
采空区冒落裂隙带
2) gob caving band
采空区冒落带
1.
Roof rock drilling pulls out gas at gob caving band and gob caving slit band,redules gas consistency In stope corner and return airway and avoids stope corner and return airway gas overrun,at the same time,the wind speed overrun is settled at stope.
告成煤矿的主采二1煤层属典型“三软”厚煤层,回采工作面隅角和回风流中瓦斯体积分数超限的主要原因是采空区瓦斯涌出过多,采取顶板岩石钻孔的方法对采空区冒落带及冒落裂隙带的瓦斯进行抽放,降低了回采工作面隅角和回风流中的瓦斯体积分数,避免了采煤工作面隅角和回风流瓦斯体积分数超限,同时克服了工作面风速超限的问题。
3) fractured zoned
冒落裂隙带
4) caving goaf
冒落采空区
5) gob rock
采空区冒落体
6) caving mining area
冒落采区
1.
In view of above problems,the mining technology has been improved in Zhuyu mine areas by supporting with small wooden stand and opening stoping passage in the caving mining area.
针对以上问题,对竹峪金矿区采矿技术进行了改进,采用小木架支护法,在冒落采区中开辟回采通道,回采矿石。
补充资料：布冒
1.广布覆盖。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条