矿柱回采过程中叠层空区稳定性监测技术实践  

Practice on the Stability Monitoring Technique of Laminated Goaf During Pillar Recovery

作　　者：盛佳[1,2] 陈蓓[1] 李向东[1,2] 周益龙[1,2] 米继武 江飞飞[1,2] 

机构地区：[1]长沙矿山研究院有限责任公司,湖南长沙410012 [2]国家金属采矿工程技术研究中心,湖南长沙410012 [3]崇礼紫金矿业有限责任公司,河北张家口市076350

出　　处：《矿业研究与开发》2016年第5期75-78,共4页Mining Research and Development

基　　金：国家科技部转制科研院所创新能力专项资金项目(2014EG215027);"十二五"国家科技支撑计划项目(2013BAB02B00)

摘　　要：针对某大型岩金矿山两步骤分段空场嗣后放顶采矿法的矿柱试验采场,采用YH-1420A型钻孔位移计监测不同区域的顶板位移情况,同时采用DYF-2型智能声波监测多用仪监测采空区及矿柱受载荷作用下的声发射现象。综合评判两类监测数据,及时预测采空区上覆岩层稳定性及其变化趋势,为二步骤采场安全回采提供了理论依据,并为大规模叠层空区处理提供了重要的技术支撑。The two-steps sublevel open-stoping method with continuously roof caving was used in a large gold mine.Aimed at its pillar test stope,the YH-1420 Atype borehole extensometer was used to monitor the roof displacement in different areas,and the DYF-2type multipurpose intelligent acoustic detector was used to monitor the goaf and the acoustic emission under the action of loading on the pillar.Through comprehensively analyzing the two kinds of monitoring data,the stability of the strata overlying goaf and its development trends could be predicted timely,which provided theoretical basis for the safe mining of second-step stope,as well as provided important technical support for managing large-scale laminated goaf.

关 键 词：矿柱回采 嗣后放顶 位移监测 声发射监测 叠层空区 

分 类 号：TD853.391[矿业工程—金属矿开采]