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DOI	10.1007/s11069-020-04246-8
	Numerical simulation of water inrush in fault zone considering seepage paths
	Yu H.; Zhu S.; Xie H.; Hou J.
发表日期	2020
ISSN	0921030X
起始页码	1763
结束页码	1779
卷号	104 期号:2
英文摘要	Fault zones provide water flow paths and have often been the focus of water inrush prevention and control in coal mines. In previous studies, fault zones have been modeled as a straight line, but due to the influence of changes in the rock structure and weathering, fault zones are actually not linear. Therefore, the focus of this research is to examine the effect of considering the nonlinearity of a fault by using numerical simulations to examine water inrush from a fault zone that is characterized by fractures with different seepage paths. The model simulates water inrush from a nonuniform channel to explore the influence of seepage paths under confined flow conditions and high water pressures on seepage velocity in a fault. The determination of boundary conditions and calculation parameters in the numerical model is based on the experimental results of injection test in the fault of study area. The results show that in the compression zones of the fault, the flow velocity is higher and the potential energy of the water is increased due to changes in the cross section of the fault. Water inrush in the compression zones of the fault will lead to more serious inrush events. In addition, high water pressure from the water source of the inrush also has a substantial influence on the velocity of the water body. The flow medium in the fracture, which has a low permeability and is more or less impermeable, plays an important role in controlling the severity of water inrush. © 2020, Springer Nature B.V.
关键词	Fault zone Flow medium High pressure water Numerical simulation Seepage path Water inrush
英文关键词	boundary condition; computer simulation; fault zone; flow velocity; numerical model; permeability; potential energy; rock mechanics; seepage; water flow; weathering
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/206033
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, Xuzhou, Jiangsu Province 221116, China; Institute of Mine Water Hazards Prevention and Controlling Technology, School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, Jiangsu Province 221116, China; Department of Geological Survey, Dongtan Coal Mine, Yanzhou Coal Mining Company, Zoucheng, Shandong Province 273500, China
推荐引用方式 GB/T 7714	Yu H.,Zhu S.,Xie H.,et al. Numerical simulation of water inrush in fault zone considering seepage paths[J],2020,104(2).
APA	Yu H.,Zhu S.,Xie H.,&Hou J..(2020).Numerical simulation of water inrush in fault zone considering seepage paths.Natural Hazards,104(2).
MLA	Yu H.,et al."Numerical simulation of water inrush in fault zone considering seepage paths".Natural Hazards 104.2(2020).