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dc.contributor.authorLi, C.
dc.contributor.authorXu, X.
dc.contributor.authorDong, L.
dc.contributor.authorSarmadivaleh, Mohammad
dc.contributor.authorSun, X.
dc.date.accessioned2017-01-30T13:19:22Z
dc.date.available2017-01-30T13:19:22Z
dc.date.created2016-02-28T19:30:31Z
dc.date.issued2016
dc.identifier.citationLi, C. and Xu, X. and Dong, L. and Sarmadivaleh, M. and Sun, X. 2016. A study on the characteristics of microseismic signal during deformation and failure of different materials under uniaxial compression. Shock and Vibration. 2016 (Article ID 6751496): pp. 1-12.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/30389
dc.identifier.doi10.1155/2016/6751496
dc.description.abstract

© 2016 Chengwu Li et al. With the decline of shallow coal reserves and increase in demand of coal consumption, the hazard of coal and rock dynamic disasters is expanding. In this paper, we conducted some laboratory scale tests on coal, cement, and glass materials to figure out the microseismic (MS) characteristic differences among materials. A new method, denoted as WPT-LMD, is proposed to conduct signal denoising and analysis work. A series of basic analyses regarding MS are conducted, including the relationships between MS characteristics and loading rate, coal powder particle size, loading stage, and MS event statistics. Research results show that the damage of all these three materials is accompanied with MS events, abundant with low frequency component (0-200 Hz). But cement and coal specimens produce with relative wide frequency distribution in sample frequency domain, while glass specimens were found to only produce low frequency event. The powder particle sizes have obvious influence on the strength of coal specimen, but the loading rate seems to have no influence on the MS characteristics. The outcome of the paper will further provide a theoretical basis for understanding the mechanism of MS activities and has great significance to improve the coal mining safety.

dc.titleA study on the characteristics of microseismic signal during deformation and failure of different materials under uniaxial compression
dc.typeJournal Article
dcterms.source.volume2016
dcterms.source.issn1070-9622
dcterms.source.titleShock and Vibration
curtin.departmentDepartment of Petroleum Engineering
curtin.accessStatusOpen access via publisher


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