大同侏罗纪煤层槽波频散特性及振幅特征

FREQUENCY DISPERSION AND AMPLITUDE DISTRIBUTION OF CHANNEL WAVE FOR JURASSIC COAL SEAMS IN DATONG COALFIELD

摘要: 用数学模型的方法对大同侏罗纪煤田的15个煤层进行频散和振幅分布模拟:夹矸大于0.2m时,对频散和振幅分布有影响;对地质非对称模型,最大振幅偏离煤层中心。

Abstract: The mathematical model method is used to simulate the frequency dispersion and amplitude distribution for fifteen Jurassic coal seams in Datong coalfield． The partings with the thickness more than 0.2m have the influences on the frequency dispersion and amplitude distribution． In the asymmetric geological model， the biggest amplitude deviates from the centre of seam．