Channel wave advanced detection method based on Kirchhoff migration and its application

Authors

ZHAO Yunpei, Jizhong Energy Xingtai Mining Group Co., Ltd., Xingtai 054000, China
WANG Wei, Institute of Geographic Sciences and Nat-ural Resources Research, Chinese Academy of Science, Beijing 100101, ChinaFollow
HOU Xianhua, MNR Key Laboratory of Saline Lake Resources and Environments, Institute of Mineral Resources, CAGS, Beijing 100037, China

Abstract

In order to detect the geological structures in the front of the working face 1199 in Gequan mine of Xingtai mining area, underground channel wave seismic exploration was used to conduct advanced detection, linear Radon transform was used to extract the reflection wave from the front of the roadway, parameter information of the surrounding rocks were obtained through velocity analysis in time domain, The abnormal geological bodies in the front of the roadway were imaged through Kirchhoff migration. The results indicated that there existed anomalies at 205 m and 237 m away from the geophone point G12 in the front of the excavating roadway, corresponding to the mined-out roadway and the fault SF4 respectively; The velocity parameters were extracted through velocity analysis, it was judged preliminarily that SF4 was water-bearing. The drilling verification results showed that Kirchhoff migration method can image the faults in front of the roadway.

Keywords

channel wave, dispersion analysis, advanced detection, Kirchhoff migration, Gequan mine of Xingtai mining area

DOI

10.3969/j.issn.1001-1986.2019.04.028

Recommended Citation

ZHAO Yunpei, WANG Wei, HOU Xianhua, et al. (2019) "Channel wave advanced detection method based on Kirchhoff migration and its application," Coal Geology & Exploration: Vol. 47: Iss. 4, Article 29.
DOI: 10.3969/j.issn.1001-1986.2019.04.028
Available at: https://cge.researchcommons.org/journal/vol47/iss4/29

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