INCREMENTAL OPEN-PIT MINING OF STEEPLY DIPPING ORE DEPOSITS
INCREMENTAL OPEN-PIT MINING OF STEEPLY DIPPING ORE DEPOSITS
复制标题
急倾斜矿床的增量露天开采
DOI：
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
M. P. Ovsyannikov
中科院分区：
文献类型：
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作者：
S. Fomin;V. Ivanov;A. Semenov;M. P. Ovsyannikov
改善露天采矿作业技术和提高其效率的巨大机会在于临时保护覆盖层岩石并在采石场内留下临时的底部边缘。这是由于希望减少采石场开采初期的采矿和剥离作业量。为了降低成本，建议计划增加露天开采，建立推回。露天开采和开发技术工作区的分阶段形成动态应确保实施预计的采矿量，并确保在不同阶段的边界内同时进行密集开发的可能性。在市场活跃、价格变化和对矿物原料的需求方面，存在着露天开采陡倾矿床的采矿和工程以及采矿和地质条件恶化的客观趋势。重建采石场的决定可能会导致阶段和支柱的创建。在这种情况下，现有的最终矿坑边界将用于推回。当装载工作面的移动达到弃矿阶段时，进行创建临时半封闭边缘的过程。在某些情况下，分阶段开发矿床可以确保采矿的经济可行性和必要的回报率。作者论证了在经济形势不断变化的背景下，形成矿石的时间底边的必要性。
Great opportunities for improving the open-pit mining operations technology and increasing their efficiency are laid in the temporary conservation of overburden rocks and leaving a temporary basset edge within the quarry. This is due to the desire to reduce the volume of mining and stripping operations in the initial periods of quarries exploitation. To reduce costs, it is advisable to plan incremental surface mining with the establishment of pushbacks. Phased formation dynamics of the working zone of opencasts and development technologies should ensure the implementation of the projected volumes of mining and the possibility of their simultaneous intensive development within the boundaries of different stages. There are objective trends of deterioration of mining-and-engineering and mining-and-geological conditions of open-cut mining of steeply dipping deposits, in the context of dynamic markets, changes in prices, and demand for mineral raw materials. The creation of stages and pillars may be caused by the decision to reconstruct the quarry. In this case, an existing final pit boundary will serve a pushback. The process of creating a temporary basset edge was carried out when the movement of the loading faces reached the mine abandoning stage. Development of deposits in stages allows in some cases ensuring the economic feasibility of mining, and the necessary rate of return. The authors proved the necessity of forming a temporal basset edge of ore in the context of changing economic situations.