The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view of coal mining safety, including its architecture, stress and permeability features and implication for coal and gas outburst. 10 boreholes have been drilled for formation testing as well as coal sample retrieval for laboratory analysis.
2021-1-6 · Mylonitic coal was collected from the Jiulishan coal mine, near Jiaozuo, China. Jiulishan coal mine is located at the central part of the Jiaozuo coal basin and the sampled coal is No. 2 1 coal seam, which is the primarily mined layer of Jiulishan mine and also the typical mylonitic coal seam. 24
Henan Polytechnic University, Jiaozuo, China. Email: [email protected] Funding information National Natural Science Foundation of China (No. 41772163, No. 51274090); The Science and Technology Innovation Team in Henan province (No. 15IRTSTHN029, No. 17IRTSTHN030). Abstract Coal seam degasification by in-seam drilling borehole is one of the popular ...
2020-2-20 · of an outburst at the Jiulishan coal mine, Jiaozuo, China and general characteristics of outburst events explored. This coupling model enables the feasible range of outcomes of outbursts to be explored, providing guidance for mitigation and to inform disaster rescue. In addition, the
2018-2-23 · Jiaozuo coalfield is located in the northwest of Henan province, China, and close to the Southern Qinshui coal basin, the most successfully commercial CBM resource developed area in China. The No. II 1 coal seam is the main economic coal seam in Jiaozuo coalfield and its average thickness exceeds 5.36m. The maximum reflectance of vitrinite (R
2009-10-1 · Jiaozuo coalfield is located in the northwest of Henan province, China, and close to the Southern Qinshui coal basin, the most successfully commercial CBM resource developed area in China. The No. II 1 coal seam is the main economic coal seam in Jiaozuo coalfield and its average thickness exceeds 5.36m.
2021-3-29 · Jiaozuo coalfield is located in the northwest of Henan province, China, and Close to the Southern Qinshui coal basin. (lie most successfully commercial CBM resource developed area in China. The No. II1 coal seam is the main economic coal seam in Jiaozuo coalfield and its average thickness exceeds 5.36m. The maximum reflectance of vitrinite (R-0.max) No. II1 coal across the Jiaozuo is between 3 ...
2011-1-1 · Henan Polytechnic University, Jiaozuo (2008) (in Chinese) Google Scholar. X.Y. Li. Characteristics and effecting factors of adsorption time of coalbed gas reservoir. Natural Gas Geoscience, 14 (2003), pp. 502-505 (in Chinese) View Record in Scopus Google Scholar. Q.L. Yang.
2019-7-18 · Jiaozuo city, a typical coal mining industry city in China, is in the transition zone of Taihang Mountains and north Henan plain (Fig. 1) addition, Jiaozuo is an important distribution area of north China coalfield, where the proven reserves of coalfields start from Xiuwu to western Boai and southern Wuzhi.
2021-6-17 · Sample 6 Jiulishan mine, Jiaozuo mining area 2.32 12.92 7.68 2.55 Note: M ad, A ad, and V daf are the moisture, ash, and volatile matter contents on the air-dried basis, respectively. R 0,max is the maximum vitrinite reflectance. Beijing Sample 1 Sample 2 Sample 3 Sample 4 Sample 5 Sample 6 Xinjiang Uygur Autonomous Region China Henan Province ...
2013-11-23 · The Jiaozuo Coalfield is located in northern Henan Province in China. The Jiulishan Mine is located in the central part of the Jiaozuo Coalfield and spans an area of 18.6 km 2.The No. 2 1 coal seam is the primary mined layer in the Jiulishan Mine and is characterized by a high danger of coal and gas outbursts. More than 60 sudden coal and gas outbursts have occurred during coal mining since ...
2019-8-8 · The Jiaozuo coalfield is located in Henan Province, China. The Jiaozuo coalfield, which contains complex geological structures and abundant tectonic coal with a high gas content, high gas pressure, and low permeability, is one of the most notable coalfields in terms of coal and gas outburst disasters in China.
Mylonitic coal was collected from the Jiulishan coal mine, near Jiaozuo, China. Jiulishan coal mine is located at the cen-tral part of the Jiaozuo coal basin and the sampled coal is No. 2 1 coal seam, which is the primarily mined layer of Jiulishan mine and also the typical mylonitic coal seam.24
2020-12-13 · • CMM Power Generation Project at Jiulishan Coal Mine The project is located in Jiaozuo City, Henan Province. The coal production of Jiulishan coal mine in 2009 reached 910 thousand tonnes. In the project, three drainage pumps with a total capacity of 300 m3 per minute will be installed. The gas drainage volume is 140 m3 per minute at
2018-3-1 · Jiaozuo city is located in the transitional zone of the Taihang Mountains and the North Plain of Henan Province. It belongs to the warm temperate zone continental climate, where surface water system consists of many developed rivers, belonging to two major basins of the Yellow River and Haihe River.
2000-4-1 · It is located in the east of Jiaozuo coal mine, Henan Province, China. It consists of three mines: Hanwang Mine, Yanmazhuang Mine and Jiulishan Mine. The land surface is flat, and the whole area is about 30 km2. An intermittent river Shanmen flows through the sector from the north to the south.
2018-10-1 · The Mafangquan (MFQ) fault zone, transecting a coal seam in Jiulishan coal mine in Jiaozuo coalfield, Henan Province, China, was investigated in detail in view of coal mining safety, including its architecture, stress and permeability features and implication for coal and gas outburst. 10 boreholes have been drilled for formation testing as well as coal sample retrieval for laboratory analysis.
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