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논문 기본 정보

자료유형
학술저널
저자정보
Liang Chen (Anhui University of Science and Technology) Enyuan Wang (China University of Mining and Technology) Jianchun Ou (China University of Mining and Technology) Jiangwei Fu (Zhongyuan University of Technology)
저널정보
한국지질과학협의회 Geosciences Journal Geosciences Journal Vol.22 No.1
발행연도
2018.1
수록면
171 - 182 (12page)

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초록· 키워드

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Coal and gas outburst disaster of the No. B-1 Coalbed, Henan, China, have lasted for nearly 60 years, and the threat will become more and more serious as mining depths continuously increase. However, coal and gas outburst characteristics and factors of the coalbed have not been studied in detail. To effectively prevent and control coal and gas outburst, we analyzed the type, intensity, location and precursors of coal and gas outburst occurring in the No. B-1 Coalbed. Moreover, the effects of geological conditions (burial depth, faults, folds, coalbed thickness and dip) and mining disturbances on coal and gas outburst were studied. The results showed that these outburst accidents were mostly typical, small-sized and medium-sized outburst, which mainly occurred at the coal roadway working faces. There were many precursors such as blasting sound, changes in coal structure, and abnormal gas emission prior to the accidents. Within a burial depth of 500 m, the average outburst intensity had a stronger correlation with the burial depth, which was more obvious at a burial depth of 301~400 m, and less obvious at a burial depth of 401~500 m. However, the distribution of these outbursts barely changed within the burial depth. Up to 99.15% of coal and gas outburst occurred at faults, folds, and areas with changes in coalbed thickness and dip. Up to 68.25% were induced by blasting and 18.04% occurred during shelving, coal-shoveling and no operation. The No. B-1 Coalbed was characterized by delayed outbursts. Moreover, specific suggestions were recommended for the prevention and control of coal and gas outburst. The study is useful to government regulators and staffs engaged in the prevention and control of coal and gas outburst.

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참고문헌 (34)

참고문헌 신청
Beamish, B.B. / 1998 / Instantaneous outbursts in underground coal mines: An overview and association with coal type / International Journal of Coal Geology 35:27~55 Crossref Cao, Y. / 2001 / Coal and gas outbursts in footwalls of reverse faults / International Journal of Coal Geology 48:47~63 Crossref Chao, J. / 2015 / Analysis on main controlling factors of coal and gas outburst in Liangbei Coal Mine / Safety in Coal Mines 46:182~185 google schola Ding, Y. / 2016 / Signal characteristics of coal and rock dynamics with micro-seismic monitoring technique / International Journal of Mining Science and Technology 26:683~690 Crossref Fisne, A. / 2014 / Coal and gas outburst hazard in Zonguldak Coal Basin of Turkey, and association with geological parameters / Natural Hazards 74:1363~1390 Crossref

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