Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads
Fault activation induced by dynamic normal disturbance loads resulting from activities such as blasting, excavation, and earthquakes has the potential to trigger significant geological disasters, such as rock bursts, posing a threat to the stability and safety of rock engineering projects. In this s...
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| Language: | English |
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GeoScienceWorld
2024-12-01
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| Series: | Lithosphere |
| Online Access: | https://pubs.geoscienceworld.org/gsw/lithosphere/article-pdf/doi/10.2113/2024/lithosphere_2024_144/7072245/lithosphere_2024_144.pdf |
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| _version_ | 1832591611328987136 |
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| author | Guojian Cui Chuanqing Zhang Qiming Xie |
| author_facet | Guojian Cui Chuanqing Zhang Qiming Xie |
| author_sort | Guojian Cui |
| collection | DOAJ |
| description | Fault activation induced by dynamic normal disturbance loads resulting from activities such as blasting, excavation, and earthquakes has the potential to trigger significant geological disasters, such as rock bursts, posing a threat to the stability and safety of rock engineering projects. In this study, we report on laboratory experiments to investigate the response of simulated faults. These experiments involved the use of bare granite surfaces to mimic fault behavior, while considering various initial stress ratios and applied normal disturbance loads. The application of normal disturbance loads led to the generation of consistent oscillations in shear stress, apparent friction coefficient, normal displacement, and shear displacement for both inactive and active faults. The experimental results suggest that the activation of faults can indeed be induced by applied normal disturbance loads, and larger initial stress ratios and disturbance loads tend to promote the activation of these simulated faults. Furthermore, we explored the effects of initial normal stress, initial shear stress, disturbance amplitude, and disturbance frequency on the primary quantified parameters associated with the simulated fault. Additionally, we conducted a preliminary discussion on the slip mechanisms of the simulated fault under dynamic normal disturbance loading and its potential engineering implications. |
| format | Article |
| id | doaj-art-fafb6b8a6bac45628c95a8cfe4a725fb |
| institution | Kabale University |
| issn | 1941-8264 1947-4253 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | GeoScienceWorld |
| record_format | Article |
| series | Lithosphere |
| spelling | doaj-art-fafb6b8a6bac45628c95a8cfe4a725fb2025-01-22T09:27:26ZengGeoScienceWorldLithosphere1941-82641947-42532024-12-012024410.2113/2024/lithosphere_2024_144Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance LoadsGuojian Cui0https://orcid.org/0000-0002-4955-1749Chuanqing Zhang1https://orcid.org/0000-0002-7990-789XQiming Xie2Eastern Institute for Advanced Study, Eastern Institute of Technology, Ningbo, 315201, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, ChinaState Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, 430071, ChinaFault activation induced by dynamic normal disturbance loads resulting from activities such as blasting, excavation, and earthquakes has the potential to trigger significant geological disasters, such as rock bursts, posing a threat to the stability and safety of rock engineering projects. In this study, we report on laboratory experiments to investigate the response of simulated faults. These experiments involved the use of bare granite surfaces to mimic fault behavior, while considering various initial stress ratios and applied normal disturbance loads. The application of normal disturbance loads led to the generation of consistent oscillations in shear stress, apparent friction coefficient, normal displacement, and shear displacement for both inactive and active faults. The experimental results suggest that the activation of faults can indeed be induced by applied normal disturbance loads, and larger initial stress ratios and disturbance loads tend to promote the activation of these simulated faults. Furthermore, we explored the effects of initial normal stress, initial shear stress, disturbance amplitude, and disturbance frequency on the primary quantified parameters associated with the simulated fault. Additionally, we conducted a preliminary discussion on the slip mechanisms of the simulated fault under dynamic normal disturbance loading and its potential engineering implications.https://pubs.geoscienceworld.org/gsw/lithosphere/article-pdf/doi/10.2113/2024/lithosphere_2024_144/7072245/lithosphere_2024_144.pdf |
| spellingShingle | Guojian Cui Chuanqing Zhang Qiming Xie Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads Lithosphere |
| title | Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads |
| title_full | Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads |
| title_fullStr | Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads |
| title_full_unstemmed | Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads |
| title_short | Frictional Characteristics of Granite Fault under Imposed Dynamic Normal Disturbance Loads |
| title_sort | frictional characteristics of granite fault under imposed dynamic normal disturbance loads |
| url | https://pubs.geoscienceworld.org/gsw/lithosphere/article-pdf/doi/10.2113/2024/lithosphere_2024_144/7072245/lithosphere_2024_144.pdf |
| work_keys_str_mv | AT guojiancui frictionalcharacteristicsofgranitefaultunderimposeddynamicnormaldisturbanceloads AT chuanqingzhang frictionalcharacteristicsofgranitefaultunderimposeddynamicnormaldisturbanceloads AT qimingxie frictionalcharacteristicsofgranitefaultunderimposeddynamicnormaldisturbanceloads |