中国露天煤矿的投资效益分析

An analysis of Investment Profit in China' Open-Pit Coal Mines

随着露天煤矿建设规模的扩大和市场经济的确立，需要重新评价露天煤矿的投资效益。通过对生产规模和建设速度、单位投资、经济效益的分析，认为在市场经济条件下，露天开采的经济效益显著，而大型设备的国产化是提高露天矿效率的关键。

Along with the enlargement of open-pitcoal mine construction scale and the establishment of market economy, it is necessary to re-evaluate thereturns on investment. Making an analysis of production scale, construction speed, unit investment andeconomic returns, the article takes it for granted that under the market economy conditions, open-pit miningoffers the optimal economic returns, while the production localization of large sized equipment is the key toimproved overall efficiency of open-pit coal mines.