| 煤层Love型槽波数值模拟及其频散特征分析 |
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| 引用本文： | 姬广忠,程建远,朱培民. 煤层Love型槽波数值模拟及其频散特征分析[J]. 煤炭科学技术, 2011, 39(6): 106-109 |
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| 作者姓名： | 姬广忠 程建远 朱培民 |
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| 作者单位： | 1. 中国煤炭科工集团有限公司西安研究院,陕西西安,710054
2. 中国地质大学(武汉),湖北武汉,430074 |
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| 基金项目： | “十一五”国家科技重大专项资助项目(2008ZX05040-003) |
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| 摘 要： | 槽波地震是探查采煤工作面内部小断层或其他地质异常中的有效手段,但以往对槽波中蕴含的频散信息利用不足。采用二维高阶交错网格法模拟了煤层槽波的波场发育特征,激发震源采用横波震源,模型边界吸收采用完全匹配层法。从模拟结果可以看出:与传统槽波理论认识不同,槽波的能量不仅分布在基阶模式,高阶部分的能量也很强,这对于今后的煤矿井下槽波勘探具有一定的参考意义。
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| 关 键 词： | Love型槽波 高阶交错网格 有限差分 频散 |
Numerical Simulation of Seam Love Type Channel-Wave and Analysis on Dispersion Features |
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| JI Guang-zhong,CHENG Jian-yuan,ZHU Pei-min. Numerical Simulation of Seam Love Type Channel-Wave and Analysis on Dispersion Features[J]. Coal Science and Technology, 2011, 39(6): 106-109 |
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| Authors: | JI Guang-zhong CHENG Jian-yuan ZHU Pei-min |
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| Affiliation: | JI Guang-zhong1,CHENG Jian-yuan1,ZHU Pei-min2(1.Xi'an Research Institute,China Coal Technology and Engineering Group Corporation Ltd.,Xi'an 710054,China,2.China University of Geosciences(Wuhan),Wuhan 430074,China) |
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| Abstract: | In-Seam Seismic(ISS) is effective means to detect the small faults or other geological anomalies within the coal mining face,but the dispersive information in the channel waves could not be fully utilized in the previous application.The 2D high order staggered network method was applied to simulate the development features of the seam channel wave field.The horizontal wave seismic source was applied to the excitation sources.The Perfectly Matched Layer(PML) method was applied to the boundary absorption of t... |
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| Keywords: | Love type channel-wave high order staggered-network finite difference dispersion |
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