Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling
In order to study the damage evolution law of coal under the seepage-stress coupling, this paper adopted the rock servo triaxial test system to conduct permeability test for full stress-strain process on 10 sets of coal specimens using steady-state method under different confining pressure and osmot...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-04-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2022.847392/full |
| _version_ | 1818393892020551680 |
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| author | Fujin Lin Fujin Lin Guangli Huang Deyi Jiang Yi He Jinyang Fan |
| author_facet | Fujin Lin Fujin Lin Guangli Huang Deyi Jiang Yi He Jinyang Fan |
| author_sort | Fujin Lin |
| collection | DOAJ |
| description | In order to study the damage evolution law of coal under the seepage-stress coupling, this paper adopted the rock servo triaxial test system to conduct permeability test for full stress-strain process on 10 sets of coal specimens using steady-state method under different confining pressure and osmotic pressure. The results show that coal permeability has a small fluctuation before the stress peak, and the permeability increases substantially after the peak. The relationship between the plastic damage variable of coal and the equivalent plastic strain is proposed. The research will provide a theoretical basis for hydraulic fracturing gas drainage reservoir. |
| first_indexed | 2024-12-14T05:52:31Z |
| format | Article |
| id | doaj.art-24ace4600fac421eadc35c2d240d205f |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-12-14T05:52:31Z |
| publishDate | 2022-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-24ace4600fac421eadc35c2d240d205f2022-12-21T23:14:40ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632022-04-011010.3389/feart.2022.847392847392Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress CouplingFujin Lin0Fujin Lin1Guangli Huang2Deyi Jiang3Yi He4Jinyang Fan5State key laboratory of coal mine disaster dynamics and control, Engineering, Chongqing University, Chongqing, ChinaChina Coal Technology Engineering Group Chongqing Institute, Chongqing, ChinaChina Coal Technology Engineering Group Chongqing Institute, Chongqing, ChinaState key laboratory of coal mine disaster dynamics and control, Engineering, Chongqing University, Chongqing, ChinaSchool of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing, ChinaState key laboratory of coal mine disaster dynamics and control, Engineering, Chongqing University, Chongqing, ChinaIn order to study the damage evolution law of coal under the seepage-stress coupling, this paper adopted the rock servo triaxial test system to conduct permeability test for full stress-strain process on 10 sets of coal specimens using steady-state method under different confining pressure and osmotic pressure. The results show that coal permeability has a small fluctuation before the stress peak, and the permeability increases substantially after the peak. The relationship between the plastic damage variable of coal and the equivalent plastic strain is proposed. The research will provide a theoretical basis for hydraulic fracturing gas drainage reservoir.https://www.frontiersin.org/articles/10.3389/feart.2022.847392/fullcoal damageequivalent plastic strainseepage-stress couplingpermeabilityexperiment research |
| spellingShingle | Fujin Lin Fujin Lin Guangli Huang Deyi Jiang Yi He Jinyang Fan Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling Frontiers in Earth Science coal damage equivalent plastic strain seepage-stress coupling permeability experiment research |
| title | Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling |
| title_full | Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling |
| title_fullStr | Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling |
| title_full_unstemmed | Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling |
| title_short | Experimental Study on Coal Permeability and Damage Evolution Under the Seepage-Stress Coupling |
| title_sort | experimental study on coal permeability and damage evolution under the seepage stress coupling |
| topic | coal damage equivalent plastic strain seepage-stress coupling permeability experiment research |
| url | https://www.frontiersin.org/articles/10.3389/feart.2022.847392/full |
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