Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism
Effective monitoring of the structural health of combined coal-rock under complex geological conditions by pressure stimulated currents (PSCs) has great potential for the understanding of dynamic disasters in underground engineering. To reveal the effect of this way, the uniaxial compression experim...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-02-01
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| Series: | International Journal of Mining Science and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095268624000120 |
| _version_ | 1797243054998945792 |
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| author | Tiancheng Shan Zhonghui Li Xin Zhang Haishan Jia Xiaoran Wang Enyuan Wang Yue Niu Dong Chen Weichen Sun Dongming Wang |
| author_facet | Tiancheng Shan Zhonghui Li Xin Zhang Haishan Jia Xiaoran Wang Enyuan Wang Yue Niu Dong Chen Weichen Sun Dongming Wang |
| author_sort | Tiancheng Shan |
| collection | DOAJ |
| description | Effective monitoring of the structural health of combined coal-rock under complex geological conditions by pressure stimulated currents (PSCs) has great potential for the understanding of dynamic disasters in underground engineering. To reveal the effect of this way, the uniaxial compression experiments with PSC monitoring were conducted on three types of coal-rock combination samples with different strength combinations. The mechanism explanation of PSCs are investigated by resistivity test, atomic force microscopy (AFM) and computed tomography (CT) methods, and a PSC flow model based on progressive failure process is proposed. The influence of strength combinations on PSCs in the progressive failure process are emphasized. The results show the PSC responses between rock part, coal part and the two components are different, which are affected by multi-scale fracture characteristics and electrical properties. As the rock strength decreases, the progressive failure process changes obviously with the influence range of interface constraint effect decreasing, resulting in the different responses of PSC strength and direction in different parts to fracture behaviors. The PSC flow model is initially validated by the relationship between the accumulated charges of different parts. The results are expected to provide a new reference and method for mining design and roadway quality assessment. |
| first_indexed | 2024-04-24T18:49:01Z |
| format | Article |
| id | doaj.art-dfcc245a46f54423bca3e71defc8917e |
| institution | Directory Open Access Journal |
| issn | 2095-2686 |
| language | English |
| last_indexed | 2024-04-24T18:49:01Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | International Journal of Mining Science and Technology |
| spelling | doaj.art-dfcc245a46f54423bca3e71defc8917e2024-03-27T04:51:55ZengElsevierInternational Journal of Mining Science and Technology2095-26862024-02-01342227243Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanismTiancheng Shan0Zhonghui Li1Xin Zhang2Haishan Jia3Xiaoran Wang4Enyuan Wang5Yue Niu6Dong Chen7Weichen Sun8Dongming Wang9State Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, China; Corresponding authors.State Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources, China University of Mining and Technology, Xuzhou 221116, China; Corresponding authors.State Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaState Key Laboratory of Coal Mine Disaster Prevention and Control, China University of Mining and Technology, Xuzhou 221116, China; National Engineering Research Center for Coal Gas Control, China University of Mining and Technology, Xuzhou 221116, China; School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, ChinaEffective monitoring of the structural health of combined coal-rock under complex geological conditions by pressure stimulated currents (PSCs) has great potential for the understanding of dynamic disasters in underground engineering. To reveal the effect of this way, the uniaxial compression experiments with PSC monitoring were conducted on three types of coal-rock combination samples with different strength combinations. The mechanism explanation of PSCs are investigated by resistivity test, atomic force microscopy (AFM) and computed tomography (CT) methods, and a PSC flow model based on progressive failure process is proposed. The influence of strength combinations on PSCs in the progressive failure process are emphasized. The results show the PSC responses between rock part, coal part and the two components are different, which are affected by multi-scale fracture characteristics and electrical properties. As the rock strength decreases, the progressive failure process changes obviously with the influence range of interface constraint effect decreasing, resulting in the different responses of PSC strength and direction in different parts to fracture behaviors. The PSC flow model is initially validated by the relationship between the accumulated charges of different parts. The results are expected to provide a new reference and method for mining design and roadway quality assessment.http://www.sciencedirect.com/science/article/pii/S2095268624000120Combined coal-rockPressure stimulated currentProgressive failure processMechanismFlow model |
| spellingShingle | Tiancheng Shan Zhonghui Li Xin Zhang Haishan Jia Xiaoran Wang Enyuan Wang Yue Niu Dong Chen Weichen Sun Dongming Wang Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism International Journal of Mining Science and Technology Combined coal-rock Pressure stimulated current Progressive failure process Mechanism Flow model |
| title | Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism |
| title_full | Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism |
| title_fullStr | Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism |
| title_full_unstemmed | Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism |
| title_short | Pressure stimulated current in progressive failure process of combined coal-rock under uniaxial compression: Response and mechanism |
| title_sort | pressure stimulated current in progressive failure process of combined coal rock under uniaxial compression response and mechanism |
| topic | Combined coal-rock Pressure stimulated current Progressive failure process Mechanism Flow model |
| url | http://www.sciencedirect.com/science/article/pii/S2095268624000120 |
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