程潮铁矿崩落法和充填法协同开采方案优化研究  

Optimization Research on Collaborative Mining by Caving Method and Filling Method in Chengchao Iron Mine

作　　者：陈阳 许梦国[1] 程爱平[1] 胡兴浪 

机构地区：[1]武汉科技大学资源与环境工程学院,湖北武汉430081

出　　处：《矿业研究与开发》2017年第11期1-4,共4页Mining Research and Development

基　　金：国家自然科学基金资助项目(51604195)

摘　　要：程潮铁矿经过多年的生产,开采深度不断加深,选矿厂下的矿体越来越多。为了开采选厂下的矿体,同时保证选厂的安全和生产效率,采用崩落法和充填法协同开采-430^-500m矿体。为了研究东西区矿体开采的先后顺序,以及采矿方法回采顺序对选厂稳定性的影响。首先采用正交实验设计得到了9种开采方案,然后采用数值模拟得到9种开采方案关键点1的垂直位移以及关键点2的安全系数,最终得到方案4最优,并对方案4的采场稳定性进行分析,得到采场的稳定性满足安全要求。Through years of produmion, the mining depth of Chengchao iron mine continually increased, and there is more and more orebody under dressing plant. In order to exploit the ore body under the dressing plant, as well as ensure the safety and production efficiency of the plant, the collaborative mining by caving method and filling method was used in -430～-500 m. To study the mining sequence of the ore body in east district and west district, as well as the influence of mining sequence on the stability of the plant, the orthogonal tests were carried out, and 9 mining schemes were obtained at first. Then, the vertical displacement of No. 1 key point and the safety factors of No.2 key point of the nine mining schemes were obtained by numerical simulation. Finally, it was obtained that the No.4 scheme was optimal. And the stope stability of No.4 scheme was analyzed, which was proved to meet the safety requirements. Key words：Collaborative mining, Orthogonal design, Numerical simulation, Surface subsidence, Safety factor

关 键 词：协同开采 正交设计 数值模拟 地表沉降 安全系数 

分 类 号：TD853.34[矿业工程—金属矿开采]