中华人民共和国-中国矿业大学.PDF

第29 卷 第5 期 采矿与安全工程学报 Vol.29 No.5 2012 年09 月 Journal of Mining Safety Engineering Sep. 2012 文章编号：1673-3363-(2012)05-0674-051 井工转露天开采联合开拓的可行性研究 王海君，李克民，洪勇 （中国矿业大学矿业工程学院，煤炭资源与安全开采国家重点实验室，江苏 徐州 221116 ） 摘要 根据井工转露天开采矿山的特点，对某矿露天开拓与井工开拓方式进行研究，提出了井工 转露天矿山端帮联合开拓和坑底联合开拓2 种方式，并结合矿井实际生产地质条件对矿井扩建可 行性进行了论证，采用相对投资回收期对各种开拓方式从投资与生产成本两方面进行了经济效益 评价，优选出了适合矿山由井工转为露天开采的露井联合开拓方式。结果表明：端部联合开拓符 合某矿井工转露天开采矿山的生产实际，既能充分利用井工矿现有生产及运输系统，降低建设投 资，加快露天矿建设速度，又可扩大矿山开采规模和提高矿产资源开发的经济效益，为建设高产 高效矿山提供支撑，对于我国煤炭资源开发过程中资源条件适合的矿山实施井工转露天开采具有 现实意义。 关键词 井工转露天；露天矿；开拓系统；联合开拓；可行性 中图分类号 TD 824 文献标识码 A Feasibility Study on Combined Development for Mining Converted from Underground to Surface WANG Hai-jun ，LI Ke-min ，HONG Yong （School of Mines，State Key Laboratory of Coal Resources and Safe Mining，China University of Mining Technology，Xuzhou ，Jiangsu 221116 ，China ） Abstract According to the characteristics of mining converted from underground to surface, we studied the open-pit and underground developments in one mine, and put forward two combined developing forms in the mine with its mining converted from surface to underground, including the end slope combined developing and pit bottom combined developing. Additionally, combined with the actual mine production geology conditions, we demonstrated the expansion feasibility of the mine, and used relative payback period to evaluate the economic efficiencies of different developing forms from the aspects of investment and production costs, then selected out the combined developing method which is suitable for the mine conv