Microcracking and stress - Strain response of thermally loaded granitic rock: in situ and laboratory experiments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F16%3A00473268" target="_blank" >RIV/67985831:_____/16:00473268 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00025798:_____/16:00000289

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Microcracking and stress - Strain response of thermally loaded granitic rock: in situ and laboratory experiments

Popis výsledku v původním jazyce

The results obtained in the project FR-TI3/325 - Research on a thermally loaded rock - perspectives of underground thermal energy storage are presented in this paper. The project was designed to study thermal energy flow in granitic rock (tonalite), both in terms of efficiency as well as safety. The results include in-situ and laboratory thermal experiments. In the frame of an in-situ experiment, a study of thermal stress was carried out in the underground laboratory Josef in Czech Republic. Stress changes in rock environment induced by cyclic thermal loading at 120 m depth were continuously monitored in order to evaluate the influence of the thermal load increments. Tonalite cores were subsequently tested in laboratory. Cylindrical samples were heated in servo-hydraulic loading frame to obtain the stress response and monitor acoustic emission activity. A detailed P-wave ultrasonic sounding on spherical samples was used to evaluate the extent of heating induced damage.

Název v anglickém jazyce

Microcracking and stress - Strain response of thermally loaded granitic rock: in situ and laboratory experiments

Popis výsledku anglicky

The results obtained in the project FR-TI3/325 - Research on a thermally loaded rock - perspectives of underground thermal energy storage are presented in this paper. The project was designed to study thermal energy flow in granitic rock (tonalite), both in terms of efficiency as well as safety. The results include in-situ and laboratory thermal experiments. In the frame of an in-situ experiment, a study of thermal stress was carried out in the underground laboratory Josef in Czech Republic. Stress changes in rock environment induced by cyclic thermal loading at 120 m depth were continuously monitored in order to evaluate the influence of the thermal load increments. Tonalite cores were subsequently tested in laboratory. Cylindrical samples were heated in servo-hydraulic loading frame to obtain the stress response and monitor acoustic emission activity. A detailed P-wave ultrasonic sounding on spherical samples was used to evaluate the extent of heating induced damage.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20701 - Environmental and geological engineering, geotechnics

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

50th US Rock Mechanics / Geomechanics Symposium 2016

ISBN

978-151082802-5

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

437-442

Název nakladatele

American Rock Mechanics Association (ARMA)

Místo vydání

Houston

Místo konání akce

Houston

Datum konání akce

26. 6. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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