两种适用矿山地震事件S波信号到时拾取方法  

Two Methods of Time Picking up S-wave Signal for Mine Seismic Events

作　　者：胡刚 张楚旋 李夕兵[2] 黄德龙 蒲成志 HU Gang;ZHANG Chuxuan;LI Xibing;HUANG Delong;PU Chengzhi(School of Civil and Ocean Engineering,Jiangsu Ocean University,Jiangsu Lianyungang 222005,China;School of Resources and Safety Engineering,Central South University,Hunan Changsha 410083,China;Institute of Resources Environmental and Safety Engineering,University of South China,Hunan Hengyang 421001,China)

机构地区：[1]江苏海洋大学土木与港海工程学院,江苏连云港222005 [2]中南大学资源与安全工程学院,湖南长沙410083 [3]南华大学资源环境与安全工程学院,湖南衡阳421001

出　　处：《防灾减灾学报》2025年第1期33-40,共8页Journal of Disaster Prevention And Reduction

基　　金：江苏省自然科学青年基金项目(BK20230693);金属矿山安全与健康国家重点实验室开放基金(2017-JSKSSYS-03);江苏省双创博士项目(JSSCBS20221626);江苏省研究生教育教学改革课题重点项目(YJG202216);江苏海洋大学人才引进项目;连云港市双创博士项目。

摘　　要：在微震监测技术中,S波到时的准确拾取是至关重要的步骤。S波到时作为精确分析地震水平位置、震源深度与速度结构等关键参数的重要依据,其准确拾取是地震学领域一项重要的基础工作。基于此,采用数学中函数积分和短时平均过零率两种识别方法,对S波到时进行精确识别,并根据实际工程案例开展计算分析。通过对比分析两种方法与人工拾取结果可知:函数积分方法时差在15 ms内的精确率可达95%;短时平均过零率方法时差在15 ms内的精确率可达78%。其中,前一种方法识别效果最优,拾取的S波误差在45 m内精确率可达95%,但后一种方法适用的矿山范围更广。这两种方法各有优势,互为补充,皆可应用于矿山活动。In microseismic monitoring technology,S-wave time picking is a crucial step.S-wave time picking is an important parameter for accurate analysis of seismic horizontal position,depth and velocity structure.How to accurately pick S-wave time picking is an important basic work in seismology.Based on this,this paper uses function integration in mathematics and short time average zero crossing rate for reference,adopts two methods to accurately identify the S-wave time,and calculates and analyzes according to practical engineering examples.The comparison between the results of the two methods and the results of manual picking shows that:The accuracy of the time difference of the function integral method within 15ms can reach 95%,and the accuracy of the short-time average zero crossing rate method within 15ms can reach 78%.The former method has the best identification effect and the accuracy of the S-wave error picked within 45m is 95%,but the latter method is applicable to a wider range of mines,and the two methods complement each other.Both of the two methods proposed in this paper can be used in mining activities.

关 键 词：矿山微震 微震监测 S波拾取 短时平均过零率 

分 类 号：P315[天文地球—地震学] TD76[天文地球—固体地球物理学]