井地联合微震监测系统研制

摘要

针对目前大多数微震监测系统布置局限在井下近似平面内,微震事件垂直定位精度低等问题,设计了一种基于地面和井下联合监测的微震系统,详细介绍了系统的硬件组成及各模块功能,实现了地面监测设备GPS时间同步和井下监测设备工业以太网IEEE1588时间同步的联合.测试结果表明,该系统采集性能和时间同步精度达到了微震监测要求,地面和井下联合监测提高了微震事件垂直方向的定位精度,为微震事件精细分析和动力灾害评价提供了更好的基础数据.%Currently, most of microseismic monitoring systems are limited in roadway of mining and the vertical positioning accuracy is low.A joint microseismic monitoring system in surface and underground is designed.The hardware composition and module function of system are introduced in detail.This joints ground monitoring device GPS and underground monitoring device industrial Ethernet IEEE1588 time synchronization together.The testing results show that the acquisition performance and time synchronization precision of the system can meet the microseismic requirement.The underground and surface joint monitoring can improve the accuracy of the system positioning.It provides basic data for fine analysis and dynamic disaster assessment of microseismic event.