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目前,巴卡尔铁矿床用露天和地下同时开采。在露天矿设计境界以外,约有46％的地质储量不属露天开采范围。根据巴卡尔矿务局各矿的远景发展计划,1984年地下开采比重为26.4％,到1990年将达44.1％。目前,新巴卡尔露天矿的采矿量约占矿务局总采矿量的50％。矿体厚2～100米,平均铁品位33％。矿体下盘为马卡罗夫层片岩,上盘为伊尔库茨克层片岩。矿床多处为正断层和水平断层所破坏。矿石和围岩的普氏硬度系数f=8～13,密度为2.5～3.5吨/米~3。露天矿长1300米,宽870米。露天矿用
At present, the Bakar iron deposit is mined open-air and underground simultaneously. Outside the realm of open pit design, about 46% of the geological reserves are outside the scope of open pit mining. According to the long-term plan of each mine in the Bakar Mining Bureau, underground mining accounted for 26.4% in 1984 and reached 44.1% in 1990. At present, the new Bakar open-pit mine accounts for about 50% of the total mining volume. Ore thick 2 to 100 meters, the average iron grade of 33%. The lower body of the ore body is Makarov stratoid, and the upper plate is Irkutsk palygorskite. Many deposits are damaged by normal faults and horizontal faults. The ore and the surrounding rock have a hardness of f = 8-13 and a density of 2.5-3.5 tons / m3. Open pit mine 1300 meters wide and 870 meters wide. Opencast mining