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dc.contributor.authorHoryl, Petr
dc.contributor.authorŠňupárek, Richard
dc.contributor.authorMaršálek, Pavel
dc.contributor.authorPoruba, Zdeněk
dc.contributor.authorPacześniowski, Krzysztof
dc.date.accessioned2020-01-28T07:14:13Z
dc.date.available2020-01-28T07:14:13Z
dc.date.issued2019
dc.identifier.citationActa Montanistica Slovaca. 2019, vol. 24, issue 3, p. 213-222.cs
dc.identifier.issn1335-1788
dc.identifier.urihttp://hdl.handle.net/10084/139116
dc.description.abstractThe supports in roadways are dimensioned to the amount of the load applied during the roadway's life. Roadways are exposed to the effect of rock pressure associated with the roadway drivage and with subsequent operations that extract coal, which significantly affect the original stability of rock mass. This induced secondary stress leads to the disturbance of sedimentary rocks, which are mostly of slight and medium strength, and to the significant deformations in roadways. The gate-roads are mainly supported with yielding steel arch support (TH profiles). The load-bearing capacity of the steel arch supports is a key parameter in the design of roadways support. Determination of this parameter can be done using large testing frames in experimental laboratories. Another essentially cheaper way is to create a computer model which exhibits a good correlation with respect to the existing data from equivalent laboratory conditions. In this paper, we present the validated computer model of the steel arch supports through which the influences of important factors, namely different materials, number of the clamps in the yielding friction joints, and different values of tightening torque on the total load-bearing capacity, were determined. This parametrical study was created based on the practical requirements from industry, and the obtained results will be reflected in the design of new types of steel arch supports.cs
dc.language.isoencs
dc.publisherTechnická univerzita Košice, Fakulta baníctva, ekológie, riadenia a geotechnológiícs
dc.relation.ispartofseriesActa Montanistica Slovacacs
dc.relation.urihttps://actamont.tuke.sk/pdf/2019/n3/4horyl.pdfcs
dc.rightsThis work is licensed under a Creative Commons Attribution 4.0 International License.cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectsteel arch supportcs
dc.subjectyieldingcs
dc.subjectfrictioncs
dc.subjectbolted connectioncs
dc.subjectclampcs
dc.subjectjointcs
dc.subjectminingcs
dc.subjectFEMcs
dc.titleParametric studies of total load-bearing capacity of steel arch supportscs
dc.typearticlecs
dc.rights.accessopenAccesscs
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume24cs
dc.description.issue3cs
dc.description.lastpage222cs
dc.description.firstpage213cs
dc.identifier.wos000505598600004


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