摘要
根据新疆阿舍勒铜矿的矿山地质条件和地压活动规律,拟定了两套微震系统站网布置方案,一套是传感器七中段布置方案,另一套是三中段布置方案。从有效监测范围、灵敏度和定位误差综合考虑,最终确定传感器七中段布置方案。系统安装完毕后,经过5次人工放炮手段来调试系统的定位精度,最好精度达到7.1 m,本微震监测系统能对井下地压活动准确监测预报。
Based on the geological conditions and regularity of ground pressure activity in Ashele Copper Mine m Xinjiang, two sets of placement options were prepared in microseismic network design, in which one has sensors placed on 7 different sublevels, another on 3 sublevels. With effective monitoring scope, sensitivity and positioning error taken into consideration, the option with sensors placed on 7 sublevels was chosen as final program. After the installation completed, system debugging was conducted for the microseismic monitoring by 5 times of artificial blasting to ensure the positioning precision, with the highest precision reaching 7.1 m. It is concluded that such microseismic monitoring network can give an accurate prediction of underground pressure activities.
出处
《矿冶工程》
CAS
CSCD
北大核心
2014年第2期10-14,共5页
Mining and Metallurgical Engineering
基金
湖南省重大科技专项(2011FJ1003)
关键词
采空区
地压活动
微震站网布置
灵敏度
优化设计
调试定位
mined-out area
ground pressure activity
microseismic network layout
sensitivity
optimization design
debugging and positioning
