Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test
In order to study the mechanical characteristics and seepage mechanism of the structural plane under the action of seepage water pressure, the shear–seepage coupling test was carried out. It was found that with an increase in seepage water pressure, the peak shear strength, and shear stiffness of th...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/5/2133 |
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| author | Feng Jiao Jiang Xu Shoujian Peng Meixin He Xinrui Zhang |
| author_facet | Feng Jiao Jiang Xu Shoujian Peng Meixin He Xinrui Zhang |
| author_sort | Feng Jiao |
| collection | DOAJ |
| description | In order to study the mechanical characteristics and seepage mechanism of the structural plane under the action of seepage water pressure, the shear–seepage coupling test was carried out. It was found that with an increase in seepage water pressure, the peak shear strength, and shear stiffness of the structural plane decreased, while the peak dilatancy angle, average dilatancy angle, peak shear displacement, initial flow rate, and peak flow rate increased. The profile JRC and 3D morphology parameters under different Y values increased as seepage water pressure increased, indicating that the wear degree of the structural plane decreased. The contact area, effective aperture, average aperture, and hydraulic aperture of the structural plane all increased in phase with the increase in shear displacement, and they all increased in trend with the increase in seepage water pressure. The distribution and evolution law of the structural plane aperture were analyzed by programming using scanning point cloud data and the normal displacement value of the structure plane. It was concluded that the aperture gradually increased with the increase in seepage water pressure. |
| first_indexed | 2024-03-11T07:26:54Z |
| format | Article |
| id | doaj.art-d605469df5e34604afc11c8802181224 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T07:26:54Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
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| series | Energies |
| spelling | doaj.art-d605469df5e34604afc11c88021812242023-11-17T07:34:36ZengMDPI AGEnergies1996-10732023-02-01165213310.3390/en16052133Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling TestFeng Jiao0Jiang Xu1Shoujian Peng2Meixin He3Xinrui Zhang4State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, ChinaIn order to study the mechanical characteristics and seepage mechanism of the structural plane under the action of seepage water pressure, the shear–seepage coupling test was carried out. It was found that with an increase in seepage water pressure, the peak shear strength, and shear stiffness of the structural plane decreased, while the peak dilatancy angle, average dilatancy angle, peak shear displacement, initial flow rate, and peak flow rate increased. The profile JRC and 3D morphology parameters under different Y values increased as seepage water pressure increased, indicating that the wear degree of the structural plane decreased. The contact area, effective aperture, average aperture, and hydraulic aperture of the structural plane all increased in phase with the increase in shear displacement, and they all increased in trend with the increase in seepage water pressure. The distribution and evolution law of the structural plane aperture were analyzed by programming using scanning point cloud data and the normal displacement value of the structure plane. It was concluded that the aperture gradually increased with the increase in seepage water pressure.https://www.mdpi.com/1996-1073/16/5/2133structure planeshear–seepage coupling testseepage water pressure3D morphology parametersaperture evolution |
| spellingShingle | Feng Jiao Jiang Xu Shoujian Peng Meixin He Xinrui Zhang Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test Energies structure plane shear–seepage coupling test seepage water pressure 3D morphology parameters aperture evolution |
| title | Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test |
| title_full | Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test |
| title_fullStr | Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test |
| title_full_unstemmed | Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test |
| title_short | Study on the Aperture Evolution Law and Seepage Mechanism of 3D Rough Structure Plane under the Shear–Seepage Coupling Test |
| title_sort | study on the aperture evolution law and seepage mechanism of 3d rough structure plane under the shear seepage coupling test |
| topic | structure plane shear–seepage coupling test seepage water pressure 3D morphology parameters aperture evolution |
| url | https://www.mdpi.com/1996-1073/16/5/2133 |
| work_keys_str_mv | AT fengjiao studyontheapertureevolutionlawandseepagemechanismof3droughstructureplaneundertheshearseepagecouplingtest AT jiangxu studyontheapertureevolutionlawandseepagemechanismof3droughstructureplaneundertheshearseepagecouplingtest AT shoujianpeng studyontheapertureevolutionlawandseepagemechanismof3droughstructureplaneundertheshearseepagecouplingtest AT meixinhe studyontheapertureevolutionlawandseepagemechanismof3droughstructureplaneundertheshearseepagecouplingtest AT xinruizhang studyontheapertureevolutionlawandseepagemechanismof3droughstructureplaneundertheshearseepagecouplingtest |