摘要
三山岛金矿是我国唯一的海下开采金矿,其开采面临着采场围岩破碎、支护困难、上盘稳定性差并容易形成贯穿上盘的突水通道、具有海水下溃淹井的危险。采用微震监测技术能够对采动过程中采场围岩及上盘岩体的稳定性进行实时动态监测,达到评价、预测和预警的目的。阐述了微震监测系统的选型依据,并根据三山岛金矿安全开采需要进行了微震监测系统布置,分析了微震监测数据,对三山岛金矿上盘稳定性进行了评价。
Sanshandao gold mine is an unique undersea gold mine.Gold mining undersea faces threats,such as stope rock breaks,hard bolt,unsteady hanging wall resulting in water-inrush tunnels,or even mine flooding caused by sea drainage.The microseism monitoring technology can dynamically monitor the stability of the surrounding rocks of stopes and hanging walls in real time,thus achieving assessment,prediction,and prewarning purposes.This thesis provides the evidence for selecting the microseism monitoring system.Additionally,based on the actual situation of the Sanshandao gold mine,this thesis introduces how to deploy the microseism monitoring system,analyze the monitored data,and further assess the stability of hanging walls of Sanshandao gold mine.
出处
《黄金科学技术》
2010年第5期52-55,共4页
Gold Science and Technology
关键词
海下开采
微震监测
岩体破裂
突水
Seabed mining
Microseismic monitoring
Rock failure
Water inrush
