Experimental Study of the Dominant Flow Paths and Analysis of the Influence Factors Through Fracture Networks
Hydrology
Volume 7, Issue 2, June 2019, Pages: 32-37
Received: Jul. 11, 2019; Accepted: Aug. 12, 2019; Published: Aug. 26, 2019
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Authors
Mu Wang, Anhui Guozhen Environmental Restoration Company Limited by Shares, Hefei, China; School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, China
Fengjun Gao, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, China
Jiazhong Qian, School of Resources and Environmental Engineering, Hefei University of Technology, Hefei, China
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Abstract
As the main carrier of groundwater in nature, water transport behavior in fracture networks and identification of its main control factors are challenging problems in hydrogeology. Laboratory experiments are designed in this paper using fracture networks made of Perspex plate for a series of hydraulic tests. Using the conditions of different types of connections for inlet and outlet, temperature tracing tests are conducted for determining dominant flow paths. The flow resistances are calculated at different points, and the control factors of the dominant flow paths are then discussed. Three major conclusions are obtained: (1) the existence of the dominant flow phenomenon in fracture networks is verified; (2) the dominant flow paths can be ascertained by monitoring the temperature variation of hot water in complex fracture networks; (3) the flow resistance is the most fundamental reason for forming dominant flow: the channel with less resistance is selected as the dominant path.
Keywords
Dominant Flow Paths, Temperature Tracer, Flow Resistance, Fracture Networks
To cite this article
Mu Wang, Fengjun Gao, Jiazhong Qian, Experimental Study of the Dominant Flow Paths and Analysis of the Influence Factors Through Fracture Networks, Hydrology. Vol. 7, No. 2, 2019, pp. 32-37. doi: 10.11648/j.hyd.20190702.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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