| 用混合源模型研究矿山地震震源机制 |
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| 引用本文： | 董积平,张少泉,张诚,秦保燕.用混合源模型研究矿山地震震源机制[J].西北地震学报,1994,16(2):12-22. |
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| 作者姓名： | 董积平 张少泉 张诚 秦保燕 |
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| 作者单位： | 国家地震局兰州地震研究所，国家地震局地球物理研究所 |
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| 摘 要： | 本文讨论了矿山地震的混合源机制问题，并根据内源矩张量分解的特点提出了一种较合理的点源混合机制以及拟合求解方法。这相当于利用Ｐ波初动振幅进行相对矩张量反演，对于区分双力偶事件和非双力偶事件是有意义的。在简化情况下，对１９８７年发生在门头沟煤矿的１５次事件进行了讨论，发现它们大多属于剪切事件。
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| 关 键 词： | 混合源 内爆－剪切比 相对矩张量 |
RESEARCH ON THE MECHANISM OF MINING TREMORS FROM THE COMBINED SOURCE MODEL |
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| Dong Jiping,zhang Shaoquan,Zhang Cheng and Qin Baoyan.RESEARCH ON THE MECHANISM OF MINING TREMORS FROM THE COMBINED SOURCE MODEL[J].Northwestern Seismological Journal,1994,16(2):12-22. |
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| Authors: | Dong Jiping zhang Shaoquan Zhang Cheng and Qin Baoyan |
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| Institution: | Earthquake Research Institute of Lanzhou, SSB, henzhou 730000,Earthquake Research Institute of Lanzhou, SSB, henzhou 730000,Earthquake Research Institute of Lanzhou, SSB, henzhou 730000 and Earthquake Research Institute of Lanzhou, SSB, henzhou 730000 |
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| Abstract: | Inthispaper,thecombinedmechanismofmining tremorsis discussedand a reasonablecombined point-source mechanism withits solution is proposed in consderation ofdecomposi-tion of interior sOurce' s moment tensor,that means inversionofrelative moment tensor by theuse of first motion amplitudes which is valuable for us to distinguish double-couple events andnon-double- couple events.Fifteen tremors observed in Mentougou Mine in 1987 are studied in simplified way,as aresult most of them are double-couple events. |
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| Keywords: | Combined source Implosive-shear ratlo Relative moment tensor Mining earthquake Institute ofGeophysics SSB Beijing China |
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