采矿工程按既定的方向推进时,在采场作业的某个阶段形成临时的非工作帮区段(岩柱)并改变采场工作帮坡角,就能在时间上更合理地分配回采的矿岩量。在这种条件下,有必要从数量上评价一些主要参数,如岩柱帮坡角、岩柱扩帮区段的工作帮推进 When a mining project is proceeding in a given direction, a temporary nonworking section (pillars) is formed at a certain stage of the stope operation and the slope angle of the working stope is changed, so as to make it possible to allocate the mining mines more timely Rock mass. Under these conditions, it is necessary to quantitatively evaluate some of the main parameters, such as the rock slope angle,