About: Loading capacity of yielding connections used in steel arch roadway supports

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

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Yielding steel arch supports of roadways are widely used in coal mines. These supports consist of several segments joined by friction bolt connections. The loading capacity and pliability (ability to accept deformations of surrounding rock mass) of the arch supports is greatly influenced by the function of the connections and, in particular, the tightening of the bolts. Representative laboratory experiments are difficult to perform and it is only through expansive research on the entire support structure that relevant knowledge on these parameters can be obtained. This contribution deals with the computer modelling of the behaviour of the yielding bolt connections for different torques with the aim of determining the load-bearing capacity. Another parameter that significantly affects the loading capacity is the value of the friction coefficient of the contacts between the elements of the joints. For computer modelling, the ANSYS software and the finite element method was used. The solution is non-linear because of the bi-linear material properties of steel and the large deformations. Yielding steel arch supports of roadways are widely used in coal mines. These supports consist of several segments joined by friction bolt connections. The loading capacity and pliability (ability to accept deformations of surrounding rock mass) of the arch supports is greatly influenced by the function of the connections and, in particular, the tightening of the bolts. Representative laboratory experiments are difficult to perform and it is only through expansive research on the entire support structure that relevant knowledge on these parameters can be obtained. This contribution deals with the computer modelling of the behaviour of the yielding bolt connections for different torques with the aim of determining the load-bearing capacity. Another parameter that significantly affects the loading capacity is the value of the friction coefficient of the contacts between the elements of the joints. For computer modelling, the ANSYS software and the finite element method was used. The solution is non-linear because of the bi-linear material properties of steel and the large deformations. (en)
Title	Loading capacity of yielding connections used in steel arch roadway supports Loading capacity of yielding connections used in steel arch roadway supports (en)
skos:prefLabel	Loading capacity of yielding connections used in steel arch roadway supports Loading capacity of yielding connections used in steel arch roadway supports (en)
skos:notation	RIV/68145535:_____/13:00392721!RIV14-MSM-68145535
http://linked.open...avai/riv/aktivita	I P Z
http://linked.open...avai/riv/aktivity	I, P(ED1.1.00/02.0070), Z(MSM6198910027)
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Šňupárek, Richard
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	85231
http://linked.open...ai/riv/idVysledku	RIV/68145535:_____/13:00392721
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	yielding steel arch supports of roadways; rock mass; yielding bolt connections (en)
http://linked.open.../riv/klicoveSlovo	yielding bolt connections yielding steel arch supports of roadways rock mass
http://linked.open...ontrolniKodProRIV	[A89CBBAB6A27]
http://linked.open...v/mistoKonaniAkce	Perth
http://linked.open...i/riv/mistoVydani	Perth
http://linked.open...i/riv/nazevZdroje	Proceedings of the Seventh International Symposium on Ground Support in Mining and Underground Construction
http://linked.open...in/vavai/riv/obor	DH
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	IT4Innovations Centre of Excellence
http://linked.open...UplatneniVysledku	2013
http://linked.open...iv/tvurceVysledku	Šňupárek, Richard Hlaváčková, M. Horyl, P.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2013-05-13 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Výpočetně náročné počítačové simulace a optimalizace
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	ACG - Australian Centre for Geomechanics
https://schema.org/isbn	978-0-9806154-7-0

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