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Taking the three-layered symmetrical strata model as example, to solve Love mode channel wave dispersion equation, based on the model parameters plotted Love mode channel wave dispersion curves and derived amplitude depth distribution equation. On these bases we have analyzed the wave energy distribution pattern in coal and coal filtering characteristics. The study has shown that the wave is provided with dispersion characteristics, propagation velocity changes along with frequency, and energy distribution in coal seam is uneven, strongest in the center; coal filtering on the wave is analogous to high-pass filter.
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