The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明,放顶煤采煤法其支承压力分布形式与分层开采法类似,但在量值及影响范围上有增减。
Generally top slicing is a mining method of high cost, low productivity, and large consumption of timber as compared with other methods for mining metalliferous ore bodies.
对于金属矿的开采,一般认为分层崩落法与其他采矿法相比,是一种成本高、产量低、木材消耗量大的采矿方法。
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。
A coal mining method with a combination of a slicing and caving, a double benefit in control of water conducted crack zone development and in reduction of coal production cost can be obtained.
对厚煤层采用分层与放顶煤相结合的采煤方法,既可控制导水裂缝带的发育高度,又可降低生产成本。
The South ore-bearing zone of Wushan copper mine is mined with ascending horizontal slicing hydraulic fill crosscut mining system. Roof falling and rib spalling occurred in any times.
武山铜矿南矿带采用上向水平分层进路水砂充填法回采,采场多次发生冒顶、片帮。
Slicing fully mechanized mining method is one of mining methods of thick seams.
分层综采是厚煤层采煤方法之一。
Slicing fully mechanized mining method is one of mining methods of thick seams.
分层综采是厚煤层采煤方法之一。
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