深井矿山微震事件波形研究  

Research of seismic events waveform in deep copper mine

作　　者：杨志国[1] 于润沧[2] 郭然[3] 

机构地区：[1]北京科技大学土木与环境工程学院,北京100083 [2]中国有色工程设计研究总院,北京100038 [3]中国有色矿业集团有限公司,北京100055

出　　处：《中国工程科学》2008年第8期69-72,80,共5页Strategic Study of CAE

基　　金：国家"十五"科技攻关课题(2004BA615A-04);国家自然科学基金重大项目(50490274)

摘　　要：介绍了冬瓜山铜矿引进的南非ISSI公司微震监测系统的软硬件组成;对记录地震事件波形的处理方法开展了深入研究,并对比了手动处理与系统自动处理的区别,提高了事件定位的精度,为震源参数的精确计算奠定了基础;基于波形与生产活动的对应关系,对波形所做的分类研究可确保能够快速识别各类事件;通过对测试爆破和矿山发生的地压活动事件的分析,验证了波形分析方法的可行性;为圈定岩体稳定性危险区并判断其发展趋势,及保证生产安全提供了依据。In order to better understand the regularities of rockburst occurrence, Dongguashan Copper Mine has installed an ISSI seismic monitoring system, which can make a real-time monitoring of rock mass respond to mining. This paper briefly described the layout of the monitoring system in Dongguashan Copper Mine,then analyzed how to process various kinds of event waveforms. By contrasting the different locations resulting from the automatic processing and the artificial processing, it is confirmed that the accuracy of an event location has been improved greatly by the artificial pro- cessing, which will make the calculation of seismic source parameters even more accurate. Based on the corresponding relations between waveforms recorded and mining practice, the event waveforms are assorted, which can identify events quickly. According to the analysis results of a detecting blast and an identified seismic event, the waveform analysis method put forward in this paper is validated. It will establish a sound basis for subsequent analysis of the stress or strain status,delineation of hazardous areas of rock mass and adoption of reasonable measures.

关 键 词：深井开采 岩爆 微震监测 地震波形分析 

分 类 号：TD823.84[矿业工程—煤矿开采]