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DOI	10.1007/s11069-021-04772-z
	Comprehensive analysis control effect of faults on the height of fractured water-conducting zone in longwall mining
	Wang X.; Zhu S.; Yu H.; Liu Y.
发表日期	2021
ISSN	0921030X
起始页码	2143
结束页码	2165
卷号	108 期号:2
英文摘要	In order to examine the height of a fractured water-conducting zone due to the presence of a fault, a typical working face in the Baodian Coal Mine which is located in the Yanzhou Coalfield of northeastern China is examined as a case study. Two subsurface conditions with and without a fault are considered. In this study, equations are developed to calculate the maximum span of the unsupported roof with and without the presence of a fault. Numerical models are used to examine the changes in stresses and the development of a plastic zone at different stages of mining. A comparison of the results based on theoretical analysis and numerical model shows that the height of the fractured water-conducting zone increases significantly with the presence of a fault. The height of the fractured water-conducting zone is about 1.50 times higher than the case without a fault. The results provide important insight into the prevention and control of water inrush in mines with thick and loose deposits and a thin bedrock. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	Fault Height of fractured water-conducting zone Numerical simulation Overburden failure model Theoretical calculation
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206650
作者单位	Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process of the Ministry of Education, China University of Mining and Technology, Jiangsu Province, Xuzhou, 221116, China; School of Resources and Geosciences, China University of Mining and Technology, Jiangsu Province, Xuzhou, 221116, China; Department of Geological Survey, Baodian Coal Mine, Yanzhou Coal Mining Company, Zoucheng, 273500, China
推荐引用方式 GB/T 7714	Wang X.,Zhu S.,Yu H.,et al. Comprehensive analysis control effect of faults on the height of fractured water-conducting zone in longwall mining[J],2021,108(2).
APA	Wang X.,Zhu S.,Yu H.,&Liu Y..(2021).Comprehensive analysis control effect of faults on the height of fractured water-conducting zone in longwall mining.Natural Hazards,108(2).
MLA	Wang X.,et al."Comprehensive analysis control effect of faults on the height of fractured water-conducting zone in longwall mining".Natural Hazards 108.2(2021).