Simulation of a groundwater fall caused by geological discontinuities

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	Simulation of a groundwater fall caused by geological discontinuities
	Li, WP (Li, Wenping); Liu, ZY (Liu, Zhenying); Guo, HP (Guo, Haipeng); Li, N (Li, Ning); Kang, WD (Kang, Weidong)
刊名	HYDROGEOLOGY JOURNAL
	2011
卷号	19 期号:6 页码:1121-1133
关键词	Groundwater fall Fault MODFLOW Unsaturated zone China
ISSN号	1431-2174
英文摘要	In some areas close to a reverse fault with significant vertical displacement, or the boundary of a mining area in multi-layer rock and the boundary of perched water, the phreatic water-level changes abruptly from one side of the fault or boundary to the other. There is no direct hydraulic connection between the two sides and a groundwater fall occurs across the fault or boundary. This groundwater fall cannot be easily handled by the modules available in MODFLOW. Semi-analytical solutions were derived for water discharge from the upstream to the downstream side of the fault or boundary, and verified by air-water two-phase numerical simulation. The numerical results show that the derived semi-analytical solutions can be used to accurately estimate the groundwater flux at the fault even though the unsaturated zone is not considered. A module package, GWF, was developed to simulate the groundwater fall, which can be embedded directly into MODFLOW. A theoretical example is presented to show how the package GWF is used to simulate perched water. This package was also applied successfully to build a regional groundwater model of the Urumqi River Basin, Xinjiang, China, and the simulation results showed good agreement with the local hydrogeologic conditions.
学科主题	水文地质学
WOS关键词	HYDRAULIC CONDUCTIVITY
WOS研究方向	Geology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000294707100002
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/39264]
专题	中国地质调查局
作者单位	NW Univ Xian, Dept Geol, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Li, WP ,Liu, ZY ,Guo, HP ,et al. Simulation of a groundwater fall caused by geological discontinuities[J]. HYDROGEOLOGY JOURNAL,2011,19(6):1121-1133.
APA	Li, WP ,Liu, ZY ,Guo, HP ,Li, N ,&Kang, WD .(2011).Simulation of a groundwater fall caused by geological discontinuities.HYDROGEOLOGY JOURNAL,19(6),1121-1133.
MLA	Li, WP ,et al."Simulation of a groundwater fall caused by geological discontinuities".HYDROGEOLOGY JOURNAL 19.6(2011):1121-1133.