萤石矿近主井采空区治理方法研究  

Discussion on the Treatment Schemes of Goaf Closing to the Main Shaft in Fluorite Mine

作　　者：任凤玉[1] 刘洋[1] 张东杰[1] 何荣兴[1] 周颜军 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110004

出　　处：《矿业研究与开发》2017年第11期21-25,共5页Mining Research and Development

基　　金：国家自然科学基金重点项目(51534003);国家重点研发计划项目(2016YFC0801601);中央高校基本科研业务费专项资金项目(N150104006)

摘　　要：某萤石矿主井穿过位于三中段的矿体,随着五中段的开采,四中段出现大面积采空区,严重威胁主井生产运行。根据现场调查结果和理论分析,经过对比分析,推荐废石+碎石混凝土接顶充填的空区处理方案,通过逐步掘充填井来充填跨度较大的采空区。采用数值模拟的方法确定方案的可行性,为类似近主井采空区治理提供了参考。The main shaft in a fluorite mine passes through the ore body in third sublevel. With the mining of fifth subtevel, large-area goals appear in fourth sublevel, which had a serious threat on the production operation of main shaft. Based on the survey results and the theoretical analysis,the treatment scheme of goaf was recommended to use the roof-contacted concrete filling with waste and crushed stone through comparison and analysis. The large-span goals were filled through drilling the fill- ing shaft step by step. The numerical simulation was used to determine the feasibility of scheme, which provided a reference for the treatment of goal closing to the main shaft.

关 键 词：空区处理 废石充填 混凝土接顶充填 充填井 数值 模拟 

分 类 号：TD853.391[矿业工程—金属矿开采]