Impact of destress blasting on stress field development ahead of a hardcoal longwall face
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F14%3A00429479" target="_blank" >RIV/68145535:_____/14:00429479 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Impact of destress blasting on stress field development ahead of a hardcoal longwall face
Original language description
Stress concentration and rockburst risk in coal mine are associated with the occurrence of competent strata in overburdened coal seams. Benches of sandstone and conglomerate are difficult unbreakable and a high level of elastic energy is stored there. Itcan be released as a rockburst. Destress blasting is a rockburst protective measure in hardcoal longwall mining. For optimal use of this method it is useful to know the stress changes induced by blasting. This paper describes the results of a project?sin situ stress and its changes measurement ahead of an advancing longwall face in rock mass affected by destress blasting. The project was carried out in a longwall panel with a high rockburst risk. The newly developed modified overcoring method of stress testing was used. Although the explored longwall is still in progress the first results of stress development in the overburden of a mined seam influenced by blasting are interpreted.
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
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
EUROCK 2014 - Rock Engineering and Rock Mechanics: Structures in and on Rock Masses
ISBN
978-1-315-74952-5
ISSN
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e-ISSN
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Number of pages
7
Pages from-to
585-590
Publisher name
CRC Press, Taylor and Francis Group, Balkema
Place of publication
London
Event location
Vigo
Event date
May 26, 2014
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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