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在矿岩坚硬、稳固的条件下(乌拉尔、西伯利亚和哈萨克斯坦的铁矿床),采用往补偿空间和矿房大量崩矿的采矿方法。用这种方法时大多数矿岩有发生冲击地压的倾向。同时在地压作用下,矿柱、上盘和矿体有自然塌落的现象。可以在爆破矿房矿量的同时,或者落后一段时间,用崩落法强制崩落坚硬、稳固的覆盖岩层,或者强制崩落房式采矿法的矿柱处理采空区。在覆盖岩层难以顺利崩落的条件下,存
In the hard and steady conditions of ore deposits (iron ore deposits in Urals, Siberia and Kazakhstan), mining methods are used to compensate for the large amount of landslides in the space and mines. Most ore rocks have a tendency to rock burst with this method. At the same time under the effect of pressure, pillars, the plate and the ore body has the phenomenon of natural collapse. In the blasting of ore mines or at the same time, or after a period of time, the use of caving method forcibly caving hard and stable covering rock, or forcing caving method of mining ore column processing mined-out area. In the cover rock formation is difficult to smooth the conditions, save