Joint response characteristics of AE and PSC in coal rheological-impact process
A combined monitoring experiment of pressure stimulated currents (PSC) and acoustic emission (AE) signals was conducted on coal samples under the coupled action of rheology and impact load. The temporal response characteristics of AE and PSC were analyzed, and a nonlinear fitting method was used to...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Earth Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/feart.2025.1586883/full |
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| author | Dongming Wang Dongming Wang Xueqiu He Enyuan Wang Enyuan Wang Changqing Li Dexing Li Dexing Li Zihao Mao Zihao Mao |
| author_facet | Dongming Wang Dongming Wang Xueqiu He Enyuan Wang Enyuan Wang Changqing Li Dexing Li Dexing Li Zihao Mao Zihao Mao |
| author_sort | Dongming Wang |
| collection | DOAJ |
| description | A combined monitoring experiment of pressure stimulated currents (PSC) and acoustic emission (AE) signals was conducted on coal samples under the coupled action of rheology and impact load. The temporal response characteristics of AE and PSC were analyzed, and a nonlinear fitting method was used to obtain the functional relationship between AE increment and the number of impacts. Based on the non-extensive statistical mechanics theory, the non-extensive parameter of the PSC decay process was calculated, and the decay law of PSC over time after impact loading was analyzed. The results show that AE and PSC signals can synchronously reflect the deformation and failure behavior of coal samples under rheological and impact loading conditions. During the impact loading stage, both AE counts and PSC signals exhibit a simultaneous surge, demonstrating distinct instantaneous response characteristics. In the subsequent rheological stage, the AE signal manifests as sporadic counts, while the PSC rapidly decays in a power law manner to a stable value. As the rheological stress level and the number of impacts increase, both the maximum and stable values of the PSC exhibit a gradual decreasing trend. The non-extensive statistical mechanics analysis indicates that PSC decay exhibits non-extensive characteristics, with a significant reduction in before impact failure, suggesting that q can be used to assess coal mass stability. |
| format | Article |
| id | doaj-art-be65eb4ddb1d45d7a9d865ee3e9083a2 |
| institution | OA Journals |
| issn | 2296-6463 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Earth Science |
| spelling | doaj-art-be65eb4ddb1d45d7a9d865ee3e9083a22025-08-20T02:08:31ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632025-04-011310.3389/feart.2025.15868831586883Joint response characteristics of AE and PSC in coal rheological-impact processDongming Wang0Dongming Wang1Xueqiu He2Enyuan Wang3Enyuan Wang4Changqing Li5Dexing Li6Dexing Li7Zihao Mao8Zihao Mao9Key Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou, ChinaSchool of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing, ChinaKey Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou, ChinaShandong Energy Group Luxi Mining Co., Ltd., Heze, Shandong, ChinaKey Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou, ChinaKey Laboratory of Gas and Fire Control for Coal Mines, China University of Mining and Technology, Xuzhou, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou, ChinaA combined monitoring experiment of pressure stimulated currents (PSC) and acoustic emission (AE) signals was conducted on coal samples under the coupled action of rheology and impact load. The temporal response characteristics of AE and PSC were analyzed, and a nonlinear fitting method was used to obtain the functional relationship between AE increment and the number of impacts. Based on the non-extensive statistical mechanics theory, the non-extensive parameter of the PSC decay process was calculated, and the decay law of PSC over time after impact loading was analyzed. The results show that AE and PSC signals can synchronously reflect the deformation and failure behavior of coal samples under rheological and impact loading conditions. During the impact loading stage, both AE counts and PSC signals exhibit a simultaneous surge, demonstrating distinct instantaneous response characteristics. In the subsequent rheological stage, the AE signal manifests as sporadic counts, while the PSC rapidly decays in a power law manner to a stable value. As the rheological stress level and the number of impacts increase, both the maximum and stable values of the PSC exhibit a gradual decreasing trend. The non-extensive statistical mechanics analysis indicates that PSC decay exhibits non-extensive characteristics, with a significant reduction in before impact failure, suggesting that q can be used to assess coal mass stability.https://www.frontiersin.org/articles/10.3389/feart.2025.1586883/fullrockburstrheology-impactAEPSCcombined monitoring |
| spellingShingle | Dongming Wang Dongming Wang Xueqiu He Enyuan Wang Enyuan Wang Changqing Li Dexing Li Dexing Li Zihao Mao Zihao Mao Joint response characteristics of AE and PSC in coal rheological-impact process Frontiers in Earth Science rockburst rheology-impact AE PSC combined monitoring |
| title | Joint response characteristics of AE and PSC in coal rheological-impact process |
| title_full | Joint response characteristics of AE and PSC in coal rheological-impact process |
| title_fullStr | Joint response characteristics of AE and PSC in coal rheological-impact process |
| title_full_unstemmed | Joint response characteristics of AE and PSC in coal rheological-impact process |
| title_short | Joint response characteristics of AE and PSC in coal rheological-impact process |
| title_sort | joint response characteristics of ae and psc in coal rheological impact process |
| topic | rockburst rheology-impact AE PSC combined monitoring |
| url | https://www.frontiersin.org/articles/10.3389/feart.2025.1586883/full |
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