Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy
The study of rock fracturing is a fundamental research topic in rock mechanics and engineering. In this paper, based on complete stress–strain curves obtained under TTC and the corresponding AE and strain energy results, the mechanical properties and fracturing process of Beishan granite are studied...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Elsevier
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/75189 |
| _version_ | 1848763449477169152 |
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| author | Zhang, Y. Feng, X.-T. Yang, C. Zhang, X. Sharifzadeh, Mostafa Wang, Z. |
| author_facet | Zhang, Y. Feng, X.-T. Yang, C. Zhang, X. Sharifzadeh, Mostafa Wang, Z. |
| author_sort | Zhang, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The study of rock fracturing is a fundamental research topic in rock mechanics and engineering. In this paper, based on complete stress–strain curves obtained under TTC and the corresponding AE and strain energy results, the mechanical properties and fracturing process of Beishan granite are studied. A representative test result (σ2 = 75 MPa, σ3 = 20 MPa) is selected to analyse and illustrate the three-dimensional fracturing process of the Beishan granite. The results show that the variations in the characteristics of the brittle fracture behaviour, AE and strain energy of Beishan granite change with σ2 or σ3 following certain relationships, and the mechanisms driving these various relationships are very different. The AE and strain energy characteristics of Beishan granite are also quite different among the five fracturing evolution stages. The variations in the increments of AE count, AE event and total elastic strain energy per unit time (ΔSc/Δt, ΔSe/Δt and ΔUe/Δt) are studied at different times and under different stresses during rock failure. The rock fracturing evolution can be illustrated through the variation in these parameters, providing deep insight. This research provides a perspective for studying deep underground fracture-forming processes, such as earthquakes, tunnel sudden failure, spalling, splitting and rockburst. |
| first_indexed | 2025-11-14T11:03:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-75189 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:03:38Z |
| publishDate | 2019 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-751892024-05-22T08:49:50Z Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy Zhang, Y. Feng, X.-T. Yang, C. Zhang, X. Sharifzadeh, Mostafa Wang, Z. The study of rock fracturing is a fundamental research topic in rock mechanics and engineering. In this paper, based on complete stress–strain curves obtained under TTC and the corresponding AE and strain energy results, the mechanical properties and fracturing process of Beishan granite are studied. A representative test result (σ2 = 75 MPa, σ3 = 20 MPa) is selected to analyse and illustrate the three-dimensional fracturing process of the Beishan granite. The results show that the variations in the characteristics of the brittle fracture behaviour, AE and strain energy of Beishan granite change with σ2 or σ3 following certain relationships, and the mechanisms driving these various relationships are very different. The AE and strain energy characteristics of Beishan granite are also quite different among the five fracturing evolution stages. The variations in the increments of AE count, AE event and total elastic strain energy per unit time (ΔSc/Δt, ΔSe/Δt and ΔUe/Δt) are studied at different times and under different stresses during rock failure. The rock fracturing evolution can be illustrated through the variation in these parameters, providing deep insight. This research provides a perspective for studying deep underground fracture-forming processes, such as earthquakes, tunnel sudden failure, spalling, splitting and rockburst. 2019 Journal Article http://hdl.handle.net/20.500.11937/75189 10.1016/j.ijrmms.2019.03.029 Elsevier fulltext |
| spellingShingle | Zhang, Y. Feng, X.-T. Yang, C. Zhang, X. Sharifzadeh, Mostafa Wang, Z. Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title | Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title_full | Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title_fullStr | Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title_full_unstemmed | Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title_short | Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy |
| title_sort | fracturing evolution analysis of beishan granite under true triaxial compression based on acoustic emission and strain energy |
| url | http://hdl.handle.net/20.500.11937/75189 |