摘要
当前,马钢高村铁矿面临二期工程即将减产的现状,为延长矿山稳产年限,规划开展采场西部三期技改工程建设工作。介绍了采场三期开采规划情况,结合矿山现状及矿产资源赋存特点,阐述了二期到三期过渡期的开采难点。对比分析了陡帮开采和缓帮开采的优劣,指出陡帮开采可以均衡生产剥采比,降低基建剥离洪峰,是适合高村采场过渡期稳产的扩帮方式;同时结合矿山特点,推荐采用雁行追踪式陡帮开采方案。按照动态法计算生产成本净现值,在保证采场过渡期(2021-2027年)稳产的条件下,陡帮开采比缓帮开采可以节约直接成本3421.53万元,经济效益十分显著。
At present,Magang Gaocun Iron Mine is facing the status quo of the second phase project is about to reduce production.In order to extend the stable production life of the mine,it is planned to carry out the construction of the third phase project in the west of the stope.The thesis introduces the plan of the third phase mining in the stope.Combining the current status of the mine and the characteristics of mineral resources,the mining difficulties during the transition period from the second phase to the third phase are explained.The advantages and disadvantages of steep slope mining and gentle slope mining are compared and analyzed.It is pointed out that steep slope mining can balance the production stripping ratio and reduce peak stripping,which is a suitable expansion method for stable production in the transition period of Gaocun mine.At the same time,combined with the characteristics of the mine,it is recommended to use the goose-tracking steep side mining scheme.The net present value of production cost is calculated according to the dynamic method.Under the condition of ensuring stable production in the transition period(2021-2027),the steep slope mining can save direct costs of 34.215 million yuan compared with the gentle slope mining,and the economic benefits are very significant.
作者
袁英杰
揣新
陈红权
YUAN Yingjie;CHUAI Xin;CHEN Hongquan(Anhui Masteel Mining Resources Group Nanshan Mining Co.,Ltd.)
出处
《现代矿业》
CAS
2020年第10期33-37,共5页
Modern Mining
关键词
分期开采
生产过渡期
陡帮开采
经济效益
phased mining
production transition period
steep cut mining
economic benefit
