The mining with filling in goaf provides advantages for the rational mining of coal under buildings, railroads and water bodies.
采空区充填开采为“三下”煤炭的合理开采创造了条件。
Take an underground copper mine as studying object, on which the surface has to be protected, the mining method of sublevel filling method with roof reconstructing is studied.
以某地下铜矿为研究对象，研究了地表要求保护的前提下极破碎矿体的顶板再造上向分段充填采矿法。
The indoor experiment on the filling materials used for downward slicing drift mining with cemented backfill in Gaolong Gold Mine was performed.
对高龙金矿下向分层进路胶结充填采矿法所用的充填材料进行了室内试验研究。
The underhand slice stoping with cemented filling is the most effective mining method for incompetant orebody with complicated mining conditions.
下向分层胶结充填采矿法是矿岩破碎、开采技术条件复杂的难采矿体最有效的采矿方法。
As viewed form this, the panel upward horizontal cut-and dry filling method has been tried to use for this orebody mining, with a better results.
为此，试验用盘区上向分层干式充填采矿法进行回采，取得了较好的效果。
Meanwhile, almost all adjacent filling bodies have been damaged with poor mining security.
相邻充填体几乎均发生压坏现象，进路回采安全性差。
Meanwhile, almost all adjacent filling bodies have been damaged with poor mining security.
相邻充填体几乎均发生压坏现象，进路回采安全性差。
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