Rock and Gas Outbursts in Copper Mines: Use of Brazilian Tests to Evaluate the Work of Disintegration of Rock Resulting from Stresses Produced by Gas Present in its Porous Structure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F22%3A00559449" target="_blank" >RIV/68145535:_____/22:00559449 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/content/pdf/10.1007/s00603-022-02955-z.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007/s00603-022-02955-z.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00603-022-02955-z" target="_blank" >10.1007/s00603-022-02955-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Rock and Gas Outbursts in Copper Mines: Use of Brazilian Tests to Evaluate the Work of Disintegration of Rock Resulting from Stresses Produced by Gas Present in its Porous Structure

Popis výsledku v původním jazyce

Rock and gas outbursts occur most frequently in coal mining. Gas-induced geodynamic events in dolomite are a new and unexplored phenomenon. In the last time, two outbursts of gas and dolomite have occurred in the Legnica-Głogów Copper Region in southwestern Poland, which is one of the world’s largest copper ore mining regions. Gas-induced geodynamic events are dependent on the co-occurrence of two factors: rock porosity, and the presence of gas under significant pressure in the pores and crevices of the rock. This paper presents a condensed energy balance for the phenomenon of outbursts of dolomites and gases. The quantity of energy depends on the type of transformation taking place during decompression. The work produced enables first the disintegration of the rock, and then its transportation along the mine working space. This paper has focused on the estimation of the energy required to disintegrate the rock. It has been estimated that 0.38 MJ is needed for the size reduction of 1 m3 of ejected mass.

Název v anglickém jazyce

Rock and Gas Outbursts in Copper Mines: Use of Brazilian Tests to Evaluate the Work of Disintegration of Rock Resulting from Stresses Produced by Gas Present in its Porous Structure

Popis výsledku anglicky

Rock and gas outbursts occur most frequently in coal mining. Gas-induced geodynamic events in dolomite are a new and unexplored phenomenon. In the last time, two outbursts of gas and dolomite have occurred in the Legnica-Głogów Copper Region in southwestern Poland, which is one of the world’s largest copper ore mining regions. Gas-induced geodynamic events are dependent on the co-occurrence of two factors: rock porosity, and the presence of gas under significant pressure in the pores and crevices of the rock. This paper presents a condensed energy balance for the phenomenon of outbursts of dolomites and gases. The quantity of energy depends on the type of transformation taking place during decompression. The work produced enables first the disintegration of the rock, and then its transportation along the mine working space. This paper has focused on the estimation of the energy required to disintegrate the rock. It has been estimated that 0.38 MJ is needed for the size reduction of 1 m3 of ejected mass.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Rock Mechanics and Rock Engineering

ISSN

0723-2632

e-ISSN

1434-453X

Svazek periodika

55

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

17

Strana od-do

6209-6225

Kód UT WoS článku

000825018200002

EID výsledku v databázi Scopus

2-s2.0-85133609285