Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action
Water flow is commonly observed in rock fractures, and this flow has considerable significance in many aspects of rock engineering. In this study, seepage-stress coupled tests were performed on fractured rock masses using a computer-controlled direct shear device for rock with seepage control. The f...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/6717295 |
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| author | Ran Tan Junrui Chai Cheng Cao |
| author_facet | Ran Tan Junrui Chai Cheng Cao |
| author_sort | Ran Tan |
| collection | DOAJ |
| description | Water flow is commonly observed in rock fractures, and this flow has considerable significance in many aspects of rock engineering. In this study, seepage-stress coupled tests were performed on fractured rock masses using a computer-controlled direct shear device for rock with seepage control. The flow direction was radial. Eight types of test case were designed, and subgroup tests with varied normal stress, shear velocity, and roughness of fracture surface were conducted. The failure state of the fracture surface after the shear test, changes in shear stress, and fissure width and permeability under the above conditions were analyzed. The results include the following: the grain size of gouge fragments produced in rough fracture decreased with an increase in normal stress during shearing; the grain size of gouge fragments affected the fracture permeability; and the influence of shear velocity on the test results was mainly reflected after the peak strength. Additionally, a new expression describing fluid flow through fracture gouge is proposed. |
| format | Article |
| id | doaj-art-18b4ccb8d6b9450ea1c832fa8e7920e9 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-18b4ccb8d6b9450ea1c832fa8e7920e92025-02-03T05:54:09ZengWileyAdvances in Civil Engineering1687-80861687-80942019-01-01201910.1155/2019/67172956717295Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing ActionRan Tan0Junrui Chai1Cheng Cao2Ph.D. Student, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaProfessor, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaMaster’s Student, State Key Laboratory Base of Eco-hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, ChinaWater flow is commonly observed in rock fractures, and this flow has considerable significance in many aspects of rock engineering. In this study, seepage-stress coupled tests were performed on fractured rock masses using a computer-controlled direct shear device for rock with seepage control. The flow direction was radial. Eight types of test case were designed, and subgroup tests with varied normal stress, shear velocity, and roughness of fracture surface were conducted. The failure state of the fracture surface after the shear test, changes in shear stress, and fissure width and permeability under the above conditions were analyzed. The results include the following: the grain size of gouge fragments produced in rough fracture decreased with an increase in normal stress during shearing; the grain size of gouge fragments affected the fracture permeability; and the influence of shear velocity on the test results was mainly reflected after the peak strength. Additionally, a new expression describing fluid flow through fracture gouge is proposed.http://dx.doi.org/10.1155/2019/6717295 |
| spellingShingle | Ran Tan Junrui Chai Cheng Cao Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action Advances in Civil Engineering |
| title | Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action |
| title_full | Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action |
| title_fullStr | Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action |
| title_full_unstemmed | Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action |
| title_short | Experimental Investigation of the Permeability Measurement of Radial Flow through a Single Rough Fracture under Shearing Action |
| title_sort | experimental investigation of the permeability measurement of radial flow through a single rough fracture under shearing action |
| url | http://dx.doi.org/10.1155/2019/6717295 |
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