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Statements

Subject Item
n2:RIV%2F68145535%3A_____%2F11%3A00389443%21RIV13-AV0-68145535
rdf:type
skos:Concept n8:Vysledek
rdfs:seeAlso
http://www.crcnetbase.com/doi/abs/10.1201/b11646-290
dcterms:description
The predominant amount of European coal deposits exploited underground is extracted by the longwall method with controlled caving. Experience shows that roadways, which ensure all transport and ventilation in coalfaces, restrict both output and safety, as well as economy in coal production. The problem is urgent especially in deep mining. The contribution describes procedures for designing the supports and stabilization measures using combined support in the already planned roadways on the base of system developed in the Ostrava Karvina Coalfield (OKR) in Czech Republic. The combined support in roadways combines roof bolting and standing (conventional) supports. The calculation of a load bearing capacity of roadway supports contains period of drivage and period of minig in the vicinity of roadways. The load bearing capacity of supports during drivage is based on the size of the natural arch, the loading of supports during mining comes out from a stress wave in rock mass in the forefront of the coalface and from the caving area of the mined out panel. The input data is deduced from external measurements. The predominant amount of European coal deposits exploited underground is extracted by the longwall method with controlled caving. Experience shows that roadways, which ensure all transport and ventilation in coalfaces, restrict both output and safety, as well as economy in coal production. The problem is urgent especially in deep mining. The contribution describes procedures for designing the supports and stabilization measures using combined support in the already planned roadways on the base of system developed in the Ostrava Karvina Coalfield (OKR) in Czech Republic. The combined support in roadways combines roof bolting and standing (conventional) supports. The calculation of a load bearing capacity of roadway supports contains period of drivage and period of minig in the vicinity of roadways. The load bearing capacity of supports during drivage is based on the size of the natural arch, the loading of supports during mining comes out from a stress wave in rock mass in the forefront of the coalface and from the caving area of the mined out panel. The input data is deduced from external measurements.
dcterms:title
Determining the dimensions of combined supports in roadways Determining the dimensions of combined supports in roadways
skos:prefLabel
Determining the dimensions of combined supports in roadways Determining the dimensions of combined supports in roadways
skos:notation
RIV/68145535:_____/11:00389443!RIV13-AV0-68145535
n8:predkladatel
n9:ico%3A68145535
n4:aktivita
n19:P n19:I
n4:aktivity
I, P(ED2.1.00/03.0082)
n4:dodaniDat
n13:2013
n4:domaciTvurceVysledku
n21:8520070 n21:7062192
n4:druhVysledku
n22:D
n4:duvernostUdaju
n15:S
n4:entitaPredkladatele
n6:predkladatel
n4:idSjednocenehoVysledku
193932
n4:idVysledku
RIV/68145535:_____/11:00389443
n4:jazykVysledku
n20:eng
n4:klicovaSlova
coal mines; bolts and anchors; stability analysis
n4:klicoveSlovo
n7:coal%20mines n7:stability%20analysis n7:bolts%20and%20anchors
n4:kontrolniKodProRIV
[34EDCB299866]
n4:mistoKonaniAkce
Beijing
n4:mistoVydani
London
n4:nazevZdroje
Harmonising Rock Engineering and the Environment
n4:obor
n16:DH
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
2
n4:projekt
n11:ED2.1.00%2F03.0082
n4:rokUplatneniVysledku
n13:2011
n4:tvurceVysledku
Konečný, Petr Šňupárek, Richard
n4:typAkce
n10:WRD
n4:zahajeniAkce
2011-10-18+02:00
s:numberOfPages
5
n12:doi
10.1201/b11646-290
n14:hasPublisher
CRC Press Taylor and Francis Group, Balkema
n17:isbn
978-0-415-80444-8