Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush

For water inrush induced by fracture network flow, the critical velocity of the incipient motion of sand particles was obtained, and the functional relation between critical velocity and particle size was established through a series of tests on the nonlinear flow characteristics of a filling fractu...

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Main Authors: Bin Yang, Tianhong Yang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/6618504
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author Bin Yang
Tianhong Yang
author_facet Bin Yang
Tianhong Yang
author_sort Bin Yang
collection DOAJ
description For water inrush induced by fracture network flow, the critical velocity of the incipient motion of sand particles was obtained, and the functional relation between critical velocity and particle size was established through a series of tests on the nonlinear flow characteristics of a filling fracture network. The influence of the particle size distribution, hydrodynamic force, and geometric features of the fracture network on the characteristics of particle loss; distribution laws; and water-sand, two-phase migration was also explored. Moreover, the interactions amongst water, movable particles, the surface of the skeleton, and fracture walls, and the formation mechanism of the flow channel were qualitatively analyzed. In addition, the change rules of the mass loss characteristics and porosity of the samples with time were tested successfully. The calculation methods of the permeability and non-Darcy factor of the filling fracture network were also determined.
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publishDate 2021-01-01
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series Advances in Civil Engineering
spelling doaj-art-0c9027f291d64f028a2fcf5fe927ef9b2025-02-03T06:05:26ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66185046618504Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water InrushBin Yang0Tianhong Yang1School of Civil Engineering, University of Science and Technology Liaoning, Anshan 114051, ChinaSchool of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaFor water inrush induced by fracture network flow, the critical velocity of the incipient motion of sand particles was obtained, and the functional relation between critical velocity and particle size was established through a series of tests on the nonlinear flow characteristics of a filling fracture network. The influence of the particle size distribution, hydrodynamic force, and geometric features of the fracture network on the characteristics of particle loss; distribution laws; and water-sand, two-phase migration was also explored. Moreover, the interactions amongst water, movable particles, the surface of the skeleton, and fracture walls, and the formation mechanism of the flow channel were qualitatively analyzed. In addition, the change rules of the mass loss characteristics and porosity of the samples with time were tested successfully. The calculation methods of the permeability and non-Darcy factor of the filling fracture network were also determined.http://dx.doi.org/10.1155/2021/6618504
spellingShingle Bin Yang
Tianhong Yang
Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
Advances in Civil Engineering
title Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
title_full Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
title_fullStr Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
title_full_unstemmed Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
title_short Experimental Investigation of Water-Sand Mixed Fluid Initiation and Migration in Filling Fracture Network during Water Inrush
title_sort experimental investigation of water sand mixed fluid initiation and migration in filling fracture network during water inrush
url http://dx.doi.org/10.1155/2021/6618504
work_keys_str_mv AT binyang experimentalinvestigationofwatersandmixedfluidinitiationandmigrationinfillingfracturenetworkduringwaterinrush
AT tianhongyang experimentalinvestigationofwatersandmixedfluidinitiationandmigrationinfillingfracturenetworkduringwaterinrush