程潮铁矿西区采矿方法选择的经济评价

Economic Evaluation of Mining Method Selection for Western District in Chengchao Iron Mine

针对程潮铁矿西区深部开采方案的评选,采用净现值法、动态投资回收期法等对沿用目前的无底柱分段崩落采矿法和采用新的充填采矿法进行了经济评估。经评估,发现在建设期内,沿用目前的采矿方法需5 a多的时间才能收回初期的投入资金;而采用后一种采矿方法,仅用不到4 a时间就可以收回初期的投入,将给企业和社会带来更好的经济效益。

In the selection of the deep mining scheme for the western district of Chengchao Iron Mine, economic assessment was made using net present value and dynamic investment recovery methods on the currently used sublevel caving method and the application of new method of mining with filling. It is found through the evaluation that the capital investment will be recovered in more than five years if the currently used mining method is used while application of the latter mining method will recover the capital investment in only less than four years, which can bring better economic benefit to both the enterprise and the society.