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目前,我国許多大型露天矿在上部均已采用电气化鉄路运输。但是,对于我国許多大型黑色金属露天矿矿体短、深度大的特点来讲,由于目前常用电机車只能走行在40‰以內的坡道,在技术上已經很难用于延伸开采以經济合理的剝采比所圈定的露天矿深度范圍;而且随着露天矿深度和坡度的增大,当重車上坡时,列車自重系数增加,其經济效果恶化。因此,短深大型黑色金属露天矿的深部开拓运輸是当前生产建設的重要关鍵之一。
At present, many large-scale open-pit mines in our country have been transported by electrified Kushiro Road. However, for many large-scale black metal open-pit mines in our country, the ore bodies are short and deep, which is technically very difficult to extend the mining to economically and reasonably due to the fact that currently used electric vehicles can only run on ramps up to 40 ‰. The stripping ratio is higher than that of the opencast mine. With the increase of the depth and slope of the opencast mine, when the heavy truck goes uphill, the self-weight coefficient of the train increases, and the economic effect is deteriorated. Therefore, the deep exploration and development of short-deep large-scale black metal open-pit mines is one of the most important issues in current production and construction.