E-mail Alert Rss
 
Geophysical and Geochemical Exploration  2008, Vol. 32 Issue (6): 682-684    DOI:
wutanyuhuatan Current Issue | Archive | Adv Search |
THE APPLICATION OF RELATIVE WAVE IMPEDANCE TO THE RECOGNITION OF COAL SEAM MISSING AND THINNING ZONE
LIU Sheng1, QIU Qi-xiang2, CHENG Zeng-qing3, CAI Fu-lu3
1. China University of Mining, Beijing 100083, China;
2. Tiefa Coal Industry Group Company Ltd., Diaobingshan 112700, China;
3. Research Institute of Coal Geophysical Exploration, China National Administration of Coal Geology, Zhuozhou 072750, China
京ICP备05055290号-3
Copyright © 2021 Geophysical and Geochemical Exploration, All Rights Reserved.
Tel:(8610)62301569   Email:wt@caict.ac.cn