About: Long-hole destress blasting for rockburst control during deep underground coal mining

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About: Long-hole destress blasting for rockburst control during deep underground coal mining Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The Lazy Colliery in the Ostrava–Karvina Coalfield of the Upper Silesian Coal Basin adopted modern longwall technology for an underground extraction of coal seam No. 504. This coal seam is located at a cover depth of around 700 m. The seam thickness varied from 3.1 m to 5.0 m in the selected longwall panel. Two overlying coal seams, Nos. 512 and 530 experienced mining at average heights of 58 m and 75 m, respectively, from the planned working horizon of the seam No. 504. The proposed longwall panel was adversely situated below goaf edges of the workings in these two overlying extracted seams. An analysis of the inter-burden rock mass among these coal seams showed the presence of strong, massive strata of sandstones and conglomerates with uniaxial compressive strength values between 70 MPa and 120 MPa. The stress is measured at different mining stages by Compact Conical-ended Borehole Monitoring (CCBM). A simple laboratory test of the coal sample found a high value of the ratio of the elastic deformation to the total deformation (>0.8), indicating the energy-storing characteristic (prone to burst/bump) of the coal seam. The Lazy Colliery in the Ostrava–Karvina Coalfield of the Upper Silesian Coal Basin adopted modern longwall technology for an underground extraction of coal seam No. 504. This coal seam is located at a cover depth of around 700 m. The seam thickness varied from 3.1 m to 5.0 m in the selected longwall panel. Two overlying coal seams, Nos. 512 and 530 experienced mining at average heights of 58 m and 75 m, respectively, from the planned working horizon of the seam No. 504. The proposed longwall panel was adversely situated below goaf edges of the workings in these two overlying extracted seams. An analysis of the inter-burden rock mass among these coal seams showed the presence of strong, massive strata of sandstones and conglomerates with uniaxial compressive strength values between 70 MPa and 120 MPa. The stress is measured at different mining stages by Compact Conical-ended Borehole Monitoring (CCBM). A simple laboratory test of the coal sample found a high value of the ratio of the elastic deformation to the total deformation (>0.8), indicating the energy-storing characteristic (prone to burst/bump) of the coal seam. (en)
Title	Long-hole destress blasting for rockburst control during deep underground coal mining Long-hole destress blasting for rockburst control during deep underground coal mining (en)
skos:prefLabel	Long-hole destress blasting for rockburst control during deep underground coal mining Long-hole destress blasting for rockburst control during deep underground coal mining (en)
skos:notation	RIV/68145535:_____/13:00394628!RIV14-MSM-68145535
http://linked.open...avai/predkladatel	Ústav geoniky AV ČR, v. v. i.
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(ED2.1.00/03.0082)
http://linked.open...iv/cisloPeriodika	61
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Souček, Kamil Staš, Lubomír Koníček, Petr
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	85363
http://linked.open...ai/riv/idVysledku	RIV/68145535:_____/13:00394628
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ostrava - Karvina Coal basin; longwall mining; rockbursts; destress blasting (en)
http://linked.open.../riv/klicoveSlovo	rockbursts destress blasting longwall mining Ostrava
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[F085B474C210]
http://linked.open...i/riv/nazevZdroje	International Journal of Rock Mechanics and Mining Sciences
http://linked.open...in/vavai/riv/obor	DH
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Institute of clean technologies for mining and utilization of raw materials for energy use
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Souček, Kamil Staš, Lubomír Koníček, Petr Singh, R.
http://linked.open...ain/vavai/riv/wos	000320494600012
issn	1365-1609
number of pages	13 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.ijrmms.2013.02.001

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