Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments
To explore the seepage characteristics of cut-through fractured rocks after different temperatures, sandstone in the Hunan area was selected as the research object. First, the influence degree of different temperatures on the permeability of fractured sandstone was studied, and the permeability vari...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Geofluids |
| Online Access: | http://dx.doi.org/10.1155/2021/5534121 |
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| author | Haopeng Jiang Annan Jiang |
| author_facet | Haopeng Jiang Annan Jiang |
| author_sort | Haopeng Jiang |
| collection | DOAJ |
| description | To explore the seepage characteristics of cut-through fractured rocks after different temperatures, sandstone in the Hunan area was selected as the research object. First, the influence degree of different temperatures on the permeability of fractured sandstone was studied, and the permeability variation of fractured sandstone with net confining pressure was revealed. The test data was nonlinearly fitted to prove that the relationship between permeability and net confining pressure conforms to the characteristics of the negative exponential function. Second, the macroscopic fractured state of sandstone after different temperature treatments was analyzed, and it is concluded that the inclination angle of the fracture surface decreases with the applied thermal temperature, the fracture surface gradually develops into a single shear failure surface, and the damage degree becomes more and more serious. Finally, the theoretical formula for the calculation of fractured seepage was introduced, and the FLAC3D embedded fish language was used to compile the seepage-stress coupling calculation program of the fractured sandstone after different temperature treatments. Numerical calculations were carried out based on samples with different fracture angles of fractured sandstone, and the calculated values were in good agreement with the test results. The research results can provide guiding significance for the research on the influence of high temperature in fire tunnel on the evolution of permeability of surrounding rock fissures. |
| format | Article |
| id | doaj-art-50b8d1f063a04bd4a84e718c3860090d |
| institution | Kabale University |
| issn | 1468-8115 1468-8123 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geofluids |
| spelling | doaj-art-50b8d1f063a04bd4a84e718c3860090d2025-08-20T03:36:15ZengWileyGeofluids1468-81151468-81232021-01-01202110.1155/2021/55341215534121Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature TreatmentsHaopeng Jiang0Annan Jiang1Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, ChinaInstitute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, ChinaTo explore the seepage characteristics of cut-through fractured rocks after different temperatures, sandstone in the Hunan area was selected as the research object. First, the influence degree of different temperatures on the permeability of fractured sandstone was studied, and the permeability variation of fractured sandstone with net confining pressure was revealed. The test data was nonlinearly fitted to prove that the relationship between permeability and net confining pressure conforms to the characteristics of the negative exponential function. Second, the macroscopic fractured state of sandstone after different temperature treatments was analyzed, and it is concluded that the inclination angle of the fracture surface decreases with the applied thermal temperature, the fracture surface gradually develops into a single shear failure surface, and the damage degree becomes more and more serious. Finally, the theoretical formula for the calculation of fractured seepage was introduced, and the FLAC3D embedded fish language was used to compile the seepage-stress coupling calculation program of the fractured sandstone after different temperature treatments. Numerical calculations were carried out based on samples with different fracture angles of fractured sandstone, and the calculated values were in good agreement with the test results. The research results can provide guiding significance for the research on the influence of high temperature in fire tunnel on the evolution of permeability of surrounding rock fissures.http://dx.doi.org/10.1155/2021/5534121 |
| spellingShingle | Haopeng Jiang Annan Jiang Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments Geofluids |
| title | Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments |
| title_full | Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments |
| title_fullStr | Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments |
| title_full_unstemmed | Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments |
| title_short | Cut-Through Fractured Seepage Properties and Numerical Simulation of Sandstone after Different Temperature Treatments |
| title_sort | cut through fractured seepage properties and numerical simulation of sandstone after different temperature treatments |
| url | http://dx.doi.org/10.1155/2021/5534121 |
| work_keys_str_mv | AT haopengjiang cutthroughfracturedseepagepropertiesandnumericalsimulationofsandstoneafterdifferenttemperaturetreatments AT annanjiang cutthroughfracturedseepagepropertiesandnumericalsimulationofsandstoneafterdifferenttemperaturetreatments |