LAPSE:2019.0013
Published Article
LAPSE:2019.0013
Study of Coal Burst Source Locations in the Velenje Colliery
Goran Vižintin, Maja Kocjančič, Milivoj Vulić
January 7, 2019
The Velenje coal mine (VCM) is situated on the largest Slovenian coal deposit and in one of the thickest layers of coal known in the world. The thickness of the coal layer causes problems for the efficiency of extraction, since the majority of mining operations is within the coal layer. The selected longwall coal mining method with specific geometry, increasing depth of excavations, changes in stress state and naturally given geomechanical properties of rocks induce seismic events. Induced seismic events can be caused by caving processes, blasting or bursts of coal or the surrounding rock. For 2.5D visualization, data of excavations, ash content and calorific value of coal samples, hanging wall and footwall occurrence, subsidence of the surface and coal burst source locations were collected. Data and interpolation methods available in software package Surfer®12 were statistically analyzed and a Kriging (KRG) interpolation method was chosen. As a result 2.5D visualizations of coal bursts source locations with geomechanical properties of coal samples taken at different depth in the coal seam in the VCM were made with data-visualization packages Surfer®12 and Voxler®3.
Keywords
coal burst, mining-induced seismicity, rockburst, Velenje coal mine (VCM)
Suggested Citation
Vižintin G, Kocjančič M, Vulić M. Study of Coal Burst Source Locations in the Velenje Colliery. (2019). LAPSE:2019.0013
Author Affiliations
Vižintin G: Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva Street 12, Ljubljana SI-1000, Slovenia
Kocjančič M: Hydrogeology, Geotechnology, Ecology, Monitoring d.o.o., Zaloška Street 143, Ljubljana SI-1000, Slovenia
Vulić M: Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva Street 12, Ljubljana SI-1000, Slovenia [ORCID]
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Journal Name
Energies
Volume
9
Issue
7
Article Number
E507
Year
2016
Publication Date
2016-06-30
Published Version
ISSN
1996-1073
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Original Submission
Other Meta
PII: en9070507, Publication Type: Journal Article
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LAPSE:2019.0013
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doi:10.3390/en9070507
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Jan 7, 2019
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CC BY 4.0
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Jan 7, 2019
 
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Original Submitter
Calvin Tsay
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