Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like
Natural earthquakes and micro-seismicity resulting from hydraulic fracturing or other engineering practices display distinctively different spatial-temporal features, like mixed burst- and swarm-like features or predominantly swarm-like features. The mechanism(s) contributing to such observations ca...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Journal of Rock Mechanics and Geotechnical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1674775524002087 |
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| author | Qiquan Xiong Qing Lin Yue Gao Jesse C. Hampton |
| author_facet | Qiquan Xiong Qing Lin Yue Gao Jesse C. Hampton |
| author_sort | Qiquan Xiong |
| collection | DOAJ |
| description | Natural earthquakes and micro-seismicity resulting from hydraulic fracturing or other engineering practices display distinctively different spatial-temporal features, like mixed burst- and swarm-like features or predominantly swarm-like features. The mechanism(s) contributing to such observations can be diverse. We present the inspections on the dynamic formation process of the single swarm-like tree in laboratory acoustic emission (AE) catalogs. Such largest swarm-like trees can contain >97% AE events from the entire catalog within a test; and all catalogs under investigation display scale-invariance features. The formation of the largest swarm-like tree correlates with the rock fracture process analogue of the source pervasive process, where its AE releases exhibit significant spatial well-organization. Comparison to other laboratory catalogs under different laboratory settings helps us identify the spatial continuity of the rock fracture process as the primary factor in forming the largest swarm-like trees at laboratory scale. The stress transfer process is involved in the rock fracture process for the tests having pre-existing spatial discontinuity. Artificial perturbations on the spatial information induced by the stress transfer process further confirm that stress transfer also serves to shift the pure swarm-like catalog into a mixed burst- and swarm-like catalog. These laboratory observations may provide inspirational insights for understanding the field-scale mechanism(s) shaping the spatial-temporal energy release features. |
| format | Article |
| id | doaj-art-86e3dbb70ebb44218adb23432b92da0b |
| institution | Kabale University |
| issn | 1674-7755 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Rock Mechanics and Geotechnical Engineering |
| spelling | doaj-art-86e3dbb70ebb44218adb23432b92da0b2025-01-17T04:49:08ZengElsevierJournal of Rock Mechanics and Geotechnical Engineering1674-77552025-01-011715570Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-likeQiquan Xiong0Qing Lin1Yue Gao2Jesse C. Hampton3Geomechanics and Damage Group (GeoD), Department of Civil and Environmental Engineering, University of Wisconsin-Madison, USAState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, 102249, China; College of Petroleum Engineering, China University of Petroleum, Beijing, 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing, 102249, China; College of Petroleum Engineering, China University of Petroleum, Beijing, 102249, ChinaGeomechanics and Damage Group (GeoD), Department of Civil and Environmental Engineering, University of Wisconsin-Madison, USA; Corresponding author.Natural earthquakes and micro-seismicity resulting from hydraulic fracturing or other engineering practices display distinctively different spatial-temporal features, like mixed burst- and swarm-like features or predominantly swarm-like features. The mechanism(s) contributing to such observations can be diverse. We present the inspections on the dynamic formation process of the single swarm-like tree in laboratory acoustic emission (AE) catalogs. Such largest swarm-like trees can contain >97% AE events from the entire catalog within a test; and all catalogs under investigation display scale-invariance features. The formation of the largest swarm-like tree correlates with the rock fracture process analogue of the source pervasive process, where its AE releases exhibit significant spatial well-organization. Comparison to other laboratory catalogs under different laboratory settings helps us identify the spatial continuity of the rock fracture process as the primary factor in forming the largest swarm-like trees at laboratory scale. The stress transfer process is involved in the rock fracture process for the tests having pre-existing spatial discontinuity. Artificial perturbations on the spatial information induced by the stress transfer process further confirm that stress transfer also serves to shift the pure swarm-like catalog into a mixed burst- and swarm-like catalog. These laboratory observations may provide inspirational insights for understanding the field-scale mechanism(s) shaping the spatial-temporal energy release features.http://www.sciencedirect.com/science/article/pii/S1674775524002087Rock fractureLaboratory catalogsSwarm-like eventsAcoustic emission (AE)Scale-invariance |
| spellingShingle | Qiquan Xiong Qing Lin Yue Gao Jesse C. Hampton Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like Journal of Rock Mechanics and Geotechnical Engineering Rock fracture Laboratory catalogs Swarm-like events Acoustic emission (AE) Scale-invariance |
| title | Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like |
| title_full | Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like |
| title_fullStr | Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like |
| title_full_unstemmed | Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like |
| title_short | Spatial continuity and stress transfer: Primary and complementary factors shaping pure-swarm laboratory catalog into mixed burst-like and swarm-like |
| title_sort | spatial continuity and stress transfer primary and complementary factors shaping pure swarm laboratory catalog into mixed burst like and swarm like |
| topic | Rock fracture Laboratory catalogs Swarm-like events Acoustic emission (AE) Scale-invariance |
| url | http://www.sciencedirect.com/science/article/pii/S1674775524002087 |
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