Rockbolts as Reinforcing Elements under Dynamic Impact of Rockbursts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F09%3A00020389" target="_blank" >RIV/61989100:27230/09:00020389 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Rockbolts as Reinforcing Elements under Dynamic Impact of Rockbursts

Popis výsledku v původním jazyce

Due to strong impacts of rockbursts in Ostrava ? Karvina coalfield which affect especially roadways and cross-cuts of longwall panels it is necessary to strengthen standard steel breakthroughs support. Using of reinforcing complementary bolts seems to bevery effective. Different varieties of a number and location of such rockbolts have been analysed and compared from the viewepoint of the stability under dynamic events on the base of 3D mathematic modelling. The instrument of computer modelling has been FEM applied by ANSYS code. It deals with shape and nature of deformation of steel support, strain and deformation of reinforcing bolts, critical energy by which a permanent strain is caused, influence of interaction of adjacent rock on the above mentioned characterisics. Recommendation for number and location of reinforcing complementary bolts is also contained.

Název v anglickém jazyce

Rockbolts as Reinforcing Elements under Dynamic Impact of Rockbursts

Popis výsledku anglicky

Due to strong impacts of rockbursts in Ostrava ? Karvina coalfield which affect especially roadways and cross-cuts of longwall panels it is necessary to strengthen standard steel breakthroughs support. Using of reinforcing complementary bolts seems to bevery effective. Different varieties of a number and location of such rockbolts have been analysed and compared from the viewepoint of the stability under dynamic events on the base of 3D mathematic modelling. The instrument of computer modelling has been FEM applied by ANSYS code. It deals with shape and nature of deformation of steel support, strain and deformation of reinforcing bolts, critical energy by which a permanent strain is caused, influence of interaction of adjacent rock on the above mentioned characterisics. Recommendation for number and location of reinforcing complementary bolts is also contained.

Druh

D - Stať ve sborníku

CEP obor

JQ - Strojní zařízení a nástroje

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the ISRM-Sponsored International Symposium on Rock Mechanics: ?Rock Characterisation, Modelling and Engineering Design Methods?

ISBN

978-962-8014-17-0

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

The University of Hong Kong

Místo vydání

Hong-Kong, Čína

Místo konání akce

Hong-Kong, Čína

Datum konání akce

19. 5. 2009

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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