Rockbursts provoked by destress blasting in hard coal longwall mining
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F13%3A00384832" target="_blank" >RIV/68145535:_____/13:00384832 - isvavai.cz</a>
Result on the web
<a href="http://www.crcnetbase.com/doi/abs/10.1201/b13759-25" target="_blank" >http://www.crcnetbase.com/doi/abs/10.1201/b13759-25</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1201/b13759-25" target="_blank" >10.1201/b13759-25</a>
Alternative languages
Result language
angličtina
Original language name
Rockbursts provoked by destress blasting in hard coal longwall mining
Original language description
Destress blasting is a very important proactive measure in areas of rockburst hazard in many mining regions. However, among the hard coal mining industry in particular, it is still not a popular choice. Destress blasting is used as a standard proactive technique in areas of high rockburst risk in longwall mining in the Czech part of the Upper Silesian Coal Basin (UCSB). Destress blasting is carried out in rigid competent rocks adjacent to coal seams at depths of 700 to 1000 m below the surface. Groups of boreholes (from 2 to 10) are fired with explosive charges of 500 to 4500 kg during longwall mining of thick coal seams (thickness from 4 to 6 m) ahead of the longwall face. The main goals of destress blasting are the softening of the competent rock layers for better caving, reduction of strain energy storage and rock mass stress release. Induced rockburst can be provoked in favourable conditions and such cases from locations in the USCB are described in the paper.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
DH - Mining industry including coal mining and processing
OECD FORD branch
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Result continuities
Project
<a href="/en/project/VG20102014034" target="_blank" >VG20102014034: The aspects of safe performance of the underground mining openings in the depth over 800 m</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Rock Fragmentation by Blasting
ISBN
978-0-415-62143-4
ISSN
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e-ISSN
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Number of pages
10
Pages from-to
193-202
Publisher name
CRC Press Taylor and Francis Group, Balkema
Place of publication
London
Event location
New Dehli
Event date
Nov 26, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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