Intense rockburst impacts in deep underground construction and their prevention

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F15%3A00447883" target="_blank" >RIV/68145535:_____/15:00447883 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1139/cgj-2014-0359" target="_blank" >http://dx.doi.org/10.1139/cgj-2014-0359</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1139/cgj-2014-0359" target="_blank" >10.1139/cgj-2014-0359</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Intense rockburst impacts in deep underground construction and their prevention

Popis výsledku v původním jazyce

In the last few decades, in both mining and civil engineering projects, deeper excavations have been carried out than in the past. With this increase in depth, rocks may overstress and rock failures can occur during excavation. When competent rock strataare encountered under high stress conditions, these failures can vary from superficial spalling to explosive rockburst. Intense rockbursts may cause fatal injuries to workers and significant loss of equipment and time. The occurrence of rockbursts is always difficult to predict and special steps and measures must be taken to control them. First, burst-prone zones must be predicted by an early exhaustive geological study and by the assessment of in situ stress level and orientation. Second, basic designparameters, e.g., shape, size, and excavation method, should be modified and adapted to the expected conditions to minimize rockburst risk. Third, in situ pre-conditioning methods, e.g., destress blasting, can be applied to decrease the

Název v anglickém jazyce

Intense rockburst impacts in deep underground construction and their prevention

Popis výsledku anglicky

In the last few decades, in both mining and civil engineering projects, deeper excavations have been carried out than in the past. With this increase in depth, rocks may overstress and rock failures can occur during excavation. When competent rock strataare encountered under high stress conditions, these failures can vary from superficial spalling to explosive rockburst. Intense rockbursts may cause fatal injuries to workers and significant loss of equipment and time. The occurrence of rockbursts is always difficult to predict and special steps and measures must be taken to control them. First, burst-prone zones must be predicted by an early exhaustive geological study and by the assessment of in situ stress level and orientation. Second, basic designparameters, e.g., shape, size, and excavation method, should be modified and adapted to the expected conditions to minimize rockburst risk. Third, in situ pre-conditioning methods, e.g., destress blasting, can be applied to decrease the

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DH - Báňský průmysl včetně těžby a zpracování uhlí

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Canadian Geotechnical Journal

ISSN

0008-3674

e-ISSN

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Svazek periodika

52

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

14

Strana od-do

1426-1439

Kód UT WoS článku

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EID výsledku v databázi Scopus

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