一、留矿法在留矿法中,矿体多是水平分层,自下而上,沿逆倾斜方向开采的。崩下矿石可以用来稳固上下盘围岩,也可以作为气腿机械作业的平台。随着崩矿作业,多余的矿石在采场底部放出,以提供足够的作业空间。In the retaining mining method, the ore body is usually horizontally stratified and is mined from the bottom upward, along the direction of the reverse dip. The collapsed ore can be used to stabilize the surrounding rock of the upper and lower sides, an