黄金科学技术 ›› 2023, Vol. 31 ›› Issue (4): 659-668.doi: 10.11872/j.issn.1005-2518.2023.04.113
张君1,2(),杨清平3,刘芳芳1,2,张金钟3,徐刚强2,李晓松3
Jun ZHANG1,2(),Qingping YANG3,Fangfang LIU1,2,Jinzhong ZHANG3,Gangqiang XU2,Xiaosong LI3
摘要:
深井规模化开采已成为国内外地下矿山开采的重要发展趋势,然而这种开采工艺会面临复杂的地压灾害活动威胁。基于谦比希铜矿微震监测系统研究课题,开展了分布式微震监测系统设计方案研究。通过对谦比希铜矿通信网络特点和通信技术进行研究,提出了新型PTP时间同步协议并配置授时硬件装置,在此基础上解决了分布式系统时间同步问题,并测试验证了微震系统时间同步精度在65~82 ns之间;基于空间过滤体方式对微震信号进行边界约束,解决了微震监测区域数据分析分散的问题;通过三维数值模拟方法验证了分布式微震监测的定位精度,同时通过现场踏勘方式验证了上述方法现场应用的可靠性。研究结果表明:分布式微震监测系统可以很好地适应深井规模化开采矿山的地压灾害监测需求。
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