Experimental Investigations into the Effects of Lithology on Acoustic Emission
In order to study how lithology affects acoustic emissions (AE), a series of tunnel rock burst simulation experiments, monitored by acoustic emission instruments, were conducted on granite, marble and basalt. By analyzing the characteristic parameters, this study found that AE events occur more fr...
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| Format: | Article |
| Language: | English |
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Eastern Macedonia and Thrace Institute of Technology
2015-11-01
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| Series: | Journal of Engineering Science and Technology Review |
| Subjects: | |
| Online Access: | http://www.jestr.org/downloads/Volume8Issue3/fulltext83282015.pdf |
| _version_ | 1811246224115761152 |
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| author | Baozhu Tian Shanjun Liu Jian Li Peng Liang Yanbo Zhang Zhanle Wang |
| author_facet | Baozhu Tian Shanjun Liu Jian Li Peng Liang Yanbo Zhang Zhanle Wang |
| author_sort | Baozhu Tian |
| collection | DOAJ |
| description | In order to study how lithology affects acoustic emissions (AE), a series of tunnel rock burst simulation experiments,
monitored by acoustic emission instruments, were conducted on granite, marble and basalt. By analyzing the
characteristic parameters, this study found that AE events occur more frequently during the rock burst process on granite
and basalt. Marble remains dormant until 75% of the loading time before the peak, at which point, cracks develop rapidly
and AE events dramatically increase. During the rock burst process, the AE energy release demonstrates that low energy
is released in the incubation phase and robust energy is released during the later phase. Before the rock burst occurs,
increased in the heterogeneity index Cv values of the AE event are subject to lithology. The Cv values of granite and
basalt have an increase of about 0.2-0.4, while marble shows an increase of 1.0-1.2. The heterogeneity index Cv value of
an AE event is in line with the rock burst process. |
| first_indexed | 2024-04-12T14:50:33Z |
| format | Article |
| id | doaj.art-307881d017fe4fa88ce0a428166378c6 |
| institution | Directory Open Access Journal |
| issn | 1791-2377 1791-2377 |
| language | English |
| last_indexed | 2024-04-12T14:50:33Z |
| publishDate | 2015-11-01 |
| publisher | Eastern Macedonia and Thrace Institute of Technology |
| record_format | Article |
| series | Journal of Engineering Science and Technology Review |
| spelling | doaj.art-307881d017fe4fa88ce0a428166378c62022-12-22T03:28:27ZengEastern Macedonia and Thrace Institute of TechnologyJournal of Engineering Science and Technology Review1791-23771791-23772015-11-0183211216Experimental Investigations into the Effects of Lithology on Acoustic EmissionBaozhu Tian0Shanjun Liu1Jian Li2Peng Liang3Yanbo Zhang4Zhanle Wang5College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China / College of Mining Engineering, North China University of Science and Technology, Tangshan 063009, China College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China College of Mining Engineering, North China University of Science and Technology, Tangshan 063009, China College of Mining Engineering, North China University of Science and Technology, Tangshan 063009, China College of Mining Engineering, North China University of Science and Technology, Tangshan 063009, China Electronic Systems Engineering, University of Regina, Regina S4S0A2, CanadaIn order to study how lithology affects acoustic emissions (AE), a series of tunnel rock burst simulation experiments, monitored by acoustic emission instruments, were conducted on granite, marble and basalt. By analyzing the characteristic parameters, this study found that AE events occur more frequently during the rock burst process on granite and basalt. Marble remains dormant until 75% of the loading time before the peak, at which point, cracks develop rapidly and AE events dramatically increase. During the rock burst process, the AE energy release demonstrates that low energy is released in the incubation phase and robust energy is released during the later phase. Before the rock burst occurs, increased in the heterogeneity index Cv values of the AE event are subject to lithology. The Cv values of granite and basalt have an increase of about 0.2-0.4, while marble shows an increase of 1.0-1.2. The heterogeneity index Cv value of an AE event is in line with the rock burst process.http://www.jestr.org/downloads/Volume8Issue3/fulltext83282015.pdfRock burstAcoustic emissionEnergyLithologyRock __________________ |
| spellingShingle | Baozhu Tian Shanjun Liu Jian Li Peng Liang Yanbo Zhang Zhanle Wang Experimental Investigations into the Effects of Lithology on Acoustic Emission Journal of Engineering Science and Technology Review Rock burst Acoustic emission Energy Lithology Rock __________________ |
| title | Experimental Investigations into the Effects of Lithology on Acoustic Emission |
| title_full | Experimental Investigations into the Effects of Lithology on Acoustic Emission |
| title_fullStr | Experimental Investigations into the Effects of Lithology on Acoustic Emission |
| title_full_unstemmed | Experimental Investigations into the Effects of Lithology on Acoustic Emission |
| title_short | Experimental Investigations into the Effects of Lithology on Acoustic Emission |
| title_sort | experimental investigations into the effects of lithology on acoustic emission |
| topic | Rock burst Acoustic emission Energy Lithology Rock __________________ |
| url | http://www.jestr.org/downloads/Volume8Issue3/fulltext83282015.pdf |
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