基于RG井下电视系统的空区冒落监测  

Goaf Monitoring Based on RG Win Logger and Its Application

作　　者：何荣兴[1] 任凤玉[1] 曹建立[1] 翟会超[1] 宋德林[1] 

机构地区：[1]东北大学资源与土木工程学院,辽宁沈阳110819

出　　处：《金属矿山》2015年第8期120-124,共5页Metal Mine

基　　金：中央高校基本科研业务费专项资金项目(编号:N130301002)

摘　　要：排山楼金矿露天转地下后,采用有底柱空场法开采露天境界外矿体,形成了大规模的连续采空区,对地表及井下安全生产埋下安全隐患。RG井下电视系统的空区顶板钻孔监测表明,空区顶板存在3~4段稳定性较好的岩层可作为冒落的控制层,利用钻孔冒落断面形状和350 m平硐观测冒落状况推测空区顶板冒落线形状,并根据冒落线形状提出了留设＂L＂型安全维稳矿柱、协调矿石回采和充填作业、爆破参数控制和调整排尾砂方向等维护顶板稳固性的技术措施,收到了较好的效果,也为从空区冒落投影线边缘向空区内部逐步渐进的充填处理技术的提出提供了依据。The Paishanlou gold mine mined the orebody outside of open pit mining boundary with non-pillar open stoping method after transferred to underground mining from open-pit. Large-scale continuous goaf were formed,which left behind potential safety hazard to production of underground and ground surface. The monitoring results with RG win Logger showed that there are three or four segments of stable rocks used as caving controlling level. The shape of caving line was speculated based on the shape of borehole caving section and the observation on the caving of tunnel at 350 m. According to the shape of the caving line,the technical measures for roof stability maintenance were proposed including setting ＂ L＂ shaped pillar,coordinating mining and filling,controlling blasting parameter,adjusting the direction of discharge of tailings. Good effect on maintaining the stability of goaf roof was achieved. It provides theoretical basis to the final measures of filling gradually from the boundary of caving projective line to inside of goaf.

关 键 词：RG井下电视系统 活动空区 冒落线 充填 

分 类 号：TD853.391[矿业工程—金属矿开采]