摘要
采用光应力计监测遂昌金矿 42 0及以上中段矿柱与围岩的二次应力变化 ,建立采空区稳定性长期观测网点 ,以指导矿柱的回收及空区处理。根据监测结果 ,将采空区稳定性划分为 3个等级 ,目前已安全回收矿柱近 5万t,延长了矿山服务年限 ,取得了良好的经济和社会效益。
In order to direct the remained ore recovery of pillars and treatment of the mined out area, the secondary stress change of ore pillar and wall rock at 420 and above levels in Suichang Gold Mine of Zhejiang Province is monitored by photoelastic stressmeter, and the long-term monitor-site for stability of mined-out area is established. The stability of mined area is divided into three grades based on the monitoring results. As the results, 50kt ores are recovered from pillars until now, remarkably the economic and social benefits are achieved.
出处
《有色金属》
CSCD
2004年第3期115-117,共3页
Nonferrous Metals
关键词
采矿工程
稳定性监测
光应力计
采空区
二次应力
遂昌金矿
mining engineering
stability monitoring
photoelastic stressmeter
mined-out area
secondary stress
