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在奥列涅戈尔、萨尔拜、索科洛夫、科尔舒诺夫和其他许多露天铁矿,每年都得向其最终境界方向的硬岩中构成总长度为10～12公里的台阶。到最终境界以前进行强化开采的高山矿床有:科垃半岛的磷灰霞石矿床、塔什干铁矿石矿床、提尔内阿乌兹的钨钼矿和其它矿。固定帮建造的速度,决定露天矿固定运输线路和整个运输系统的建设时间。因此,考虑到露天矿靠帮带的开采特点,确定矿山工作发展强度指标的方法具有迫切的意义。所谓露天矿靠帮带就是指由采空区或底面沿水平线至最终境界(或半固定境界)之间不超过工作平台两倍宽度距离的区域。在硬岩中形成固定帮与靠帮带内采用境界爆破或预先形成裂隙的工艺有关。据研究,按索
In Oleinengel, Saarbe, Sokolov, Korshunov and many other open-pit mines each year, a total length of 10-12 km is formed in hard rock in the direction of their final state . In the last realm, the high-mountain deposits previously hardened for mining include the Phosphogne-Nephelite deposit in Kho-Kho Peninsula, the Tashkent iron ore deposit, the tungsten-molybdenum mine in Tire-Neaz and other mines. The speed at which the fixed gangs are built determines the construction time of the fixed transportation lines and the entire transportation system in the open pit mine. Therefore, taking into account the open-pit mine by the characteristics of the mining zone to determine the intensity of mine development indicators of work is of great significance. The so-called open-pit mining bail refers to the area from the goaf or bottom along the horizontal line to the final state (or semi-fixed state) does not exceed twice the width of the working platform area. The formation of fixed gang in hard rock is related to the process of using realm blasting or pre-fracturing within the band. According to research, according to the cable