Characteristics of Valuable Microseismic Events in Heading Face of an Underground Coal Mine Using Microseismic System | Zendy

Wenlong Zhang | Zendy; Tianhong Huo | Zendy; Chen Li | Zendy; Cunwen Wang | Zendy; Xiaocheng Qu | Zendy; Chongwei Xin | Zendy

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Characteristics of Valuable Microseismic Events in Heading Face of an Underground Coal Mine Using Microseismic System

Author(s) -

Wenlong Zhang,

Tianhong Huo,

Chen Li,

Cunwen Wang,

Xiaocheng Qu,

Chongwei Xin

Publication year - 2021

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/2021/6683238

Subject(s) - microseism , heading (navigation) , rock burst , face (sociological concept) , coal mining , seismology , event (particle physics) , range (aeronautics) , geology , warning system , fracture (geology) , energy (signal processing) , acoustic emission , mining engineering , coal , acoustics , computer science , geodesy , engineering , telecommunications , geotechnical engineering , aerospace engineering , social science , statistics , physics , mathematics , quantum mechanics , sociology , waste management

Rock burst monitoring of heading face is a weak aspect of rock burst monitoring in China; acoustic emission (AE) monitoring is one of the few monitoring technologies used in heading face, but its target signals are small energy events which are easy to be disturbed. Researchers usually focus on the weak AE events but ignore the microseismic (MS) events (different from AE event and caused by a larger scale of coal fracture), while this kind of events can also reflect the pressure situation of heading face and have higher energy value which may become a better indicator for rock burst monitoring of heading face. So, the basic characteristics of MS events in heading face are studied based on a running vibration signal acquisition system, including the occurrence position, main frequency range, maximum amplitude (MA) range, event duration, and relationship with geological structure. This paper provides a development basis of the monitoring method for rock burst monitoring of heading face by using MS events.

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