DOI: 10.1007/s11069-020-04246-8
论文题名: Numerical simulation of water inrush in fault zone considering seepage paths
作者: Yu H. ; Zhu S. ; Xie H. ; Hou J.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2020
卷: 104, 期: 2 起始页码: 1763
结束页码: 1779
语种: 英语
中文关键词: 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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168832
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Yu H.,Zhu S.,Xie H.,et al. Numerical simulation of water inrush in fault zone considering seepage paths[J]. Natural Hazards,2020-01-01,104(2)