About: Impact of destress blasting on stress field development ahead of a hardcoal longwall face

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About: Impact of destress blasting on stress field development ahead of a hardcoal longwall face Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.isrm.net/conferencias/detalhes.php?id=3119&show=conf
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. It can 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’s in 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. 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. It can 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’s in 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. (en)
Title	Impact of destress blasting on stress field development ahead of a hardcoal longwall face Impact of destress blasting on stress field development ahead of a hardcoal longwall face (en)
skos:prefLabel	Impact of destress blasting on stress field development ahead of a hardcoal longwall face Impact of destress blasting on stress field development ahead of a hardcoal longwall face (en)
skos:notation	RIV/68145535:_____/14:00429479!RIV15-MV0-68145535
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(VG20102014034)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Staš, Lubomír Koníček, Petr Ptáček, Jiří Kukutsch, Radovan Waclawik, Petr Mazaira, Alejandro
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav geoniky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	20588
http://linked.open...ai/riv/idVysledku	RIV/68145535:_____/14:00429479
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	destress blasting; mining; hardcoal longwall (en)
http://linked.open.../riv/klicoveSlovo	mining destress blasting hardcoal longwall
http://linked.open...ontrolniKodProRIV	[02C1542FC1E3]
http://linked.open...v/mistoKonaniAkce	Vigo
http://linked.open...i/riv/mistoVydani	London
http://linked.open...i/riv/nazevZdroje	EUROCK 2014 - Rock Engineering and Rock Mechanics: Structures in and on Rock Masses
http://linked.open...in/vavai/riv/obor	DH
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	The aspects of safe performance of the underground mining openings in the depth over 800 m
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Staš, Lubomír Koníček, Petr Ptáček, Jiří Kukutsch, Radovan Waclawik, Petr Mazaira, Alejandro
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-05-26 (xsd:date)
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	CRC Press, Taylor and Francis Group, Balkema
https://schema.org/isbn	978-1-315-74952-5

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