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Channel wave tomography method and its application in coal mine exploration :An example from Henan Yima Mining Area
Author(s): WANG Wei, GAO Xing, LI Song-Ying, YUE Yong, HU Guo-Ze, LI Yu-Ying
Pages: 1054-
1062
Year: 2012
Issue:
3
Journal: Chinese Journal of Geophysics
Keyword: 槽波; 频散; 群速度; 层析成像;
Abstract: 在地下煤田的开发中,工作面内的小构造、异常体、煤层厚度变化等是需要解决的关键问题,而槽波探测则为这些问题的解决提供了重要的物探方法.本文对河南义马矿区11061工作面进行槽波透射法测量,在巷道显示的煤层厚度变化为1.5~8 m,从理论频散曲线分析速度与厚度关系,确定125 Hz频率槽波主要用于观测厚度约为2~5 m的煤层厚度变化;有效提取了684个频散曲线,并分别拾取了125 Hz时槽波群速度与走...
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