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摘要: 煤矿井下采集到的槽波通常包括Rayleigh型槽波和Love型槽波，这两种类型的波场具有不同的偏振特点，由于目前现有的槽波处理软件和方法仅针对单一类型的波场，因此在数据处理过程中两种波场互为干扰，影响了后续频散分析和槽波成像的质量。从煤层槽波中Rayleigh型槽波和Love型槽波的基本偏振方程出发，利用两种波场的不同偏振特征，推导出一种时间域的波场直接分离方法，该方法具有经验参数少、算法稳健的特点；通过模型数据和实际数据的波场分离验证，取得了满意的结果。Abstract: During in-seam seismic exploration, the seam wave record often comprises Rayleigh and Love seam waves simultaneously, and the characteristics of the polarization of these two seam waves are different. However, in most cases, the existing processing software system and methods were developed for only one of these two seam waves. Accordingly, the Rayleigh and Love seam waves interfere with each other in the subsequent processing such as dispersion analysis and imaging. On the basis of the fundamental polarization equation of the Rayleigh and Love seam waves, this paper proposed a direct separation method of these two seam waves. Compared to other methods, the direct method has the advantages of less artificial influence and more robust, and it was validated by analog and real dataset.
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Keywords:
- in-seam seismic exploration /
- polarization /
- wave field separation
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[1] 胡国泽,滕吉文,皮娇龙,等. 井下槽波地震勘探——预防煤矿灾害的一种地球物理方法[J]. 地球物理学进展, 2013, 28(1):439-451. HU Guoze, TENG Jiwen, PI Jiaolong, et al. In-seam seismic exploration techniques:A geophysical method predicting coal-mine disaster[J]. Progress in Geophysics, 2013, 28(1):439-451.
[2] 程建远,李淅龙,张广忠,等. 煤矿井下地震勘探技术应用现状与发展展望[J]. 勘探地球物理进展, 2009, 32(2):96-100. CHENG Jianyuan, LI Xilong, ZHANG Guangzhong, et al. Current status and outlook of seismic exploration applied underground in coal mine[J]. Progress in Exploration Geophysics, 2009, 32(2):96-100.
[3] 王伟,高星,李松营,等. 槽波层析成像方法在煤田勘探中的应用——以河南义马矿区为例[J]. 地球物理学报, 2012, 55(3):1054-1062. WANG Wei, GAO Xing, LI Songying, et al. Channel wave tomography method and its application in coal mine exploration:An example from Henan Yima mining area[J]. Chinese Journal of Geophysics, 2012, 55(3):1054-1062.
[4] 乐勇,王伟,申青春,等. 槽波地震勘探技术在工作面小构造探测中的应用[J]. 煤田地质与勘探, 2013, 41(4):74-77. LE Yong, WANG Wei, SHEN Qingchun, et al. Application of ISS in detection of small structures in working face[J]. Coal Geology & Exploration, 2013, 41(4):74-77.
[5] 刘天放,潘冬明,李德春,等. 槽波地震勘探[M]. 北京:中国矿业大学出版社, 1994. [6] 马见青,李庆春,王美丁. 多分量地震极化分析评述[J]. 地球物理学进展, 2011, 26(3):992-1003. MA Jianqing, LI Qingchun, WANG Meiding. Review of multi-component seismic polarization analysis[J]. Progress in Geophysics, 2011, 26(3):992-1003.
[7] FLINN E A. Signal analysis using rectilinearity and direction of particle motion[J]. Proceedings of the IEEE, 1965, 53(12):1874-1876.
[8] SAMSON J C, OLSON J V. Data-adaptive polarization filter for multichannel geophysical data[J]. Geophysics, 1981, 46(10):1423-1431.
[9] PERELBERG A I, HORNBOSTEL S C. Applications of seismic polarization analysis[J]. Geophysics, 1994, 59(1):199-130.
[10] ZHANG J, WALTER W R, LAY T, et al. Time-domain pure-state polarization analysis of surface waves traversing California[J]. Pure and Applied Geophysics, 2003, 160(8):1447-1478.
[11] SAMSON J C. The spectral matrix, eigenvalues, and principal components in the analysis of multichannel geophysical data[J] Annales Geophysicae, 1983, 1(2):115-119.
[12] PARK J, VEMON F L, LINDBERG C R. Frequency dependent polarization analysis of high-frequency seismograms[J]. Journal of Geophysical Research:Solid Earth, 1987, 92(B12):12664-12674.
[13] SOMA N, NⅡTSUMA H, BARIA R. Reflection technique in time-frequency domain using multicomponent acoustic emission signals and application to geothermal reservoirs[J]. Geophysics, 2002, 67(3):928-938.
[14] DIALLO M S, KULESH M, HOLSCHNEIDER M, et al. Characterization of polarization attributes of seismic waves using continuous wavelet transforms[J]. Geophysics, 2006, 71(3):67-77.
[15] PINNEGAR C R. Polarization analysis and polarization filtering of three-component signals with the time-frequency S transform[J]. Geophysical Journal International, 2006, 165(2):596-606.
[16] 冯磊,董郑,周明奂,等. 基于时频域极化滤波的勒夫型槽波提取[J]. 煤田地质与勘探, 2016, 44(3):103-108. FENG Lei, DONG Zheng, ZHOU Minghuan, et al. Love channel wave extraction based on polarization filter in time-frequency domain[J]. Coal Geology & Exploration, 2016, 44(3):103-108.
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