论文部分内容阅读
英古列茨采选公司露天矿开采的含铁石英岩矿床距英古列茨河3.5公里,距克里沃罗格城中心35公里。在露天矿境界内,沿已探明全长(2.5公里)的面积上,矿床都覆盖着一层松软的沉积物,其平均厚度为19米。矿床呈向斜状埋藏,其大部分是水平矿层,中部区段的厚度达1公里,因此露天开采可以采到很深而剥采比不大(图1)。根据克里沃罗格设计院的设计,1961年2月公司开始了第Ⅰ期工程建设,Ⅰ期工程露天矿的生产能力为年产1800万吨磁铁石英岩。露天矿采用固定的内部沟开拓,台阶开
The iron-bearing quartzite mined in the open-pit mine in the Ingulitz Mining Company is 3.5 km from the River Ingolstadt and 35 km from the center of Krivoy Rog. In the open-pit mines, the deposits are covered with a soft deposit along the proven full-length (2.5 km) area with an average thickness of 19 m. The deposit is obliquely buried, with most of its horizontal layers, with a central section of 1 km in thickness, so deep mining can be achieved in the open pit with less stripping (Figure 1). According to the design of Korvoy Rogge Design Institute, the Company commenced the construction of Phase I in February 1961, and the open pit mine of Phase I production capacity is 18 million tons of magnetite quartzite. Opencast mine uses a fixed internal trench to open up, steps open