平兴煤矿被动源地震探测采空区技术应用研究  

Research on application of passive source seismic detection technology for gob in Pingxing Coal Mine

作　　者：王锋 Wang Feng(Huayang New Material Technology Group Co.,Ltd.,Yangquan 045000,China)

机构地区：[1]华阳新材料科技集团有限公司,山西阳泉045000

出　　处：《晋控科学技术》2024年第6期32-35,共4页Jinneng Holding Science and Technology

摘　　要：为探测阳泉煤业(集团)平定东升兴裕煤业有限公司平兴煤矿15#煤层底板采空区分布状态,采用被动源地震探测技术开展研究。采用常规带通滤波加F-K滤波相结合的多方法联合滤波方式,提高地震信号的信噪比。采用时域互相关方法提取频散曲线与面积互相关方式计算并提取频散曲线。频散曲线反演获得相应的S波速度结构剖面图表明,煤层底板共存在4处采空区,在煤层的底板高程附近,低速特征部分地段不甚明显。In order to detect the distribution of gob on the floor of No.15 coal seam in Pingxing Coal Mine,passive seismic detection technology is used.The signal-to-noise ratio of seismic signal is improved by using the combination of conventional band-pass filtering and F-K filtering.The time domain cross-correlation method is used to extract the dispersion curve and the area cross-correlation method is used to calculate and extract the dispersion curve.The corresponding S-wave velocity structure profile obtained from the inversion of the dispersion curve shows that there are four goaf areas in the coal seam floor,and the low-speed characteristics are not obvious near the floor elevation.

关 键 词：采空区探测 被动源地震 物探技术 信号处理 

分 类 号：TD325.3[矿业工程—矿井建设] P631.4[天文地球—地质矿产勘探]