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某矿区5~#脈上部是利用水平分层充填法开采矿房的,当时由于沒有完整的开采設計,矿壁与松散的充填土直接接触;同时,在矿历开采的,由于各层的开采掌握不够正确,矿壁的边緣常被吃破或凹凸不齐。構成了該矿区殘存矿壁的特点。該矿按矿壁的殘存情况和特点,采取了普通进路回采的分层崩落采矿法(簡称方案Ⅰ)进行开采。
In the upper part of No. 5 ~ # vein of a mining area, the coal mine was mined by horizontal stratification and filling method. At that time, there was direct contact with the loose fill soil due to no complete mining design. Meanwhile, due to the exploitation of strata Mastery is not correct enough, the edge of the mining wall often eaten or jagged. Constitute the characteristics of the remaining mine wall. The mine according to the remnants of the wall and characteristics of the mine, adopted a common approach to mining mining subsidence mining (referred to as program Ⅰ) for mining.