Analysis of the Rock bursts consequence for arch tunnel support

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F04%3A00010541" target="_blank" >RIV/61989100:27230/04:00010541 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Analysis of the Rock bursts consequence for arch tunnel support

Original language description

One of the main safety problems of coal mines in the Czech part of the Upper Silesian Coal Basin are rock bursts. Their strong effect occurs first of all in gate-roads. To understand the mechanisms of damage the behaviour of roadway steel arch support under dynamic loading was mathematically modelled. Numerical solution was done by program ANSYS with bilinear material properties of steel. Different shape and size of steel arches were modelled and inverse analysis of loading impulse was done. For investigating of strain and kinetic energy in course of dynamic response the macro in APDL language of ANSYS has been developed. Results of modelling including influence of contact quality between support and rock are discussed.

Czech name

Analýza důsledků horského otřesu na obloukovou tunelovou výztuž

Czech description

One of the main safety problems of coal mines in the Czech part of the Upper Silesian Coal Basin are rock bursts. Their strong effect occurs first of all in gate-roads. To understand the mechanisms of damage the behaviour of roadway steel arch support under dynamic loading was mathematically modelled. Numerical solution was done by program ANSYS with bilinear material properties of steel. Different shape and size of steel arches were modelled and inverse analysis of loading impulse was done. For investigating of strain and kinetic energy in course of dynamic response the macro in APDL language of ANSYS has been developed. Results of modelling including influence of contact quality between support and rock are discussed.

Type

D - Article in proceedings

CEP classification

JR - Other machinery industry

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2004

Confidentiality

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

Article name in the collection

Zeszyty naukowe katedry mechaniki stosowanej

ISBN

83-917224-8-1

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

65-68

Publisher name

Politechnika Slaska

Place of publication

Gliwice

Event location

Wisla

Event date

Jun 4, 2004

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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