Application of high precision gravity survey in detecting mined-out areas of Fushun coal mine

Authors

HUAN Hengfei, Shenyang Geological Survey Center, CGS, Shenyang 110034, China
GAO Tie, Shenyang Geological Survey Center, CGS, Shenyang 110034, ChinaFollow
ZHAO Haiqing, Shenyang Geological Survey Center, CGS, Shenyang 110034, China
ZHAO Weijun, Shenyang Geological Survey Center, CGS, Shenyang 110034, China
GUO Canwen, National Marine Data and Information Service, Tianjin 300171, China
SHI Bin, Liaoning Institute of Geology and Mineral Survey, Shenyang 110031, China

Abstract

In order to find out the location, depth and distribution range of the mined-out areas in Fushun coal mine, and comprehensively considering the factors affecting the geophysical methods in the cities, the method of high-precision gravity survey was firstly used to study the mined-out areas in the area. Firstly, by analyzing the physical differences of the mined-out areas, a theoretical model was established for forward calculation and preliminarily studied on applicability of the gravity method. Then, a large-scale work of high-precision gravity survey was arranged in the study area, and through potential field separation,3D apparent density inversion and boundary identification calculation of the Bouguer gravity anomaly, the location, depth, boundary and tectonic distribution of the mined-out areas were inferred. The research results show that the method of high-precision gravity survey combined with effective data processing method can play an important role in the detection of mined-out areas in urban coal mines.

Keywords

mine-out area, high-precision gravity survey, potential field separation, 3D apparent density inversion, boundary identification, Fushun coal mine

DOI

10.3969/j.issn.1001-1986.2019.06.029

Recommended Citation

HUAN Hengfei, GAO Tie, ZHAO Haiqing, et al. (2019) "Application of high precision gravity survey in detecting mined-out areas of Fushun coal mine," Coal Geology & Exploration: Vol. 47: Iss. 6, Article 30.
DOI: 10.3969/j.issn.1001-1986.2019.06.029
Available at: https://cge.researchcommons.org/journal/vol47/iss6/30

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