Method for controlling open-pit-to-underground hanging-wall ore mining rock movement
The invention discloses a method for controlling open-pit-to-underground hanging-wall ore mining rock movement. The method comprises the following steps of exploiting hanging-wall ores by using induction caving; and dividing the hanging-wall ores into an induction caving region and a caving stoping...
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Zusammenfassung: | The invention discloses a method for controlling open-pit-to-underground hanging-wall ore mining rock movement. The method comprises the following steps of exploiting hanging-wall ores by using induction caving; and dividing the hanging-wall ores into an induction caving region and a caving stoping region. A collapse pit formed after a goaf comes out of the ground surface is large enough to accommodate granular rocks generated due to side slope caving and slipping by adjustment and control on an arrangement mode, a stoping sequence and a stoping span of induction engineering and ore releasing amount of caving stoping engineering, a side slope rock movement direction is guided to point to the collapse pit, the rocks do not slip to an open pit of an open pit bottom, and open-pit extension mining is prevented from being damaged by hanging-wall ore mining rock movement. The method is particularly suitable for thick ore body open-pit-to-underground mined metal mines; and a key technology for guaranteeing production safety is provided for open-pit-to-underground cooperative mining. |
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