Modelling of interaction of bentonite based sealing element and host rock

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of interaction of bentonite based sealing element and host rock

Popis výsledku v původním jazyce

The motivation of the presented work is to increase understanding of hydro-mechanical pro-cesses in bentonite based sealing structures and the surrounding host rock. With this aim a series of SEALEX experiments were realized by IRSN in Tournemire underground rock la-boratory in France. The experiments were consequently simulated within the DECOVALEX 2015 project; see e.g. (Millard et al. [1] and [2]). In this paper, we briefly describe a hydro-mechanical model developed at the Institute of Geonics CAS within the DECOVALEX 2015 project and application of this model for simu-lation of the SEALEX PT-A1 experiment. We extend the work realised within DECOVALEX 2015 (described e.g. in Millard et al. [1] and [2]) by a more detailed modelling, which considers the composition of the sealing plug from prefabricated bentonite/sand made blocks and investigates the effects of gaps between the blocks. Whereas, the modelling described in [1] and [2] used 3D simulations to understand the HM processes in horizontal installation with originally asymmetric technical gap between the plug and surrounding rock, for the purpose of investigation of the role of gaps, a simplified 2D axisymmetric model is used.n

Název v anglickém jazyce

Modelling of interaction of bentonite based sealing element and host rock

Popis výsledku anglicky

The motivation of the presented work is to increase understanding of hydro-mechanical pro-cesses in bentonite based sealing structures and the surrounding host rock. With this aim a series of SEALEX experiments were realized by IRSN in Tournemire underground rock la-boratory in France. The experiments were consequently simulated within the DECOVALEX 2015 project; see e.g. (Millard et al. [1] and [2]). In this paper, we briefly describe a hydro-mechanical model developed at the Institute of Geonics CAS within the DECOVALEX 2015 project and application of this model for simu-lation of the SEALEX PT-A1 experiment. We extend the work realised within DECOVALEX 2015 (described e.g. in Millard et al. [1] and [2]) by a more detailed modelling, which considers the composition of the sealing plug from prefabricated bentonite/sand made blocks and investigates the effects of gaps between the blocks. Whereas, the modelling described in [1] and [2] used 3D simulations to understand the HM processes in horizontal installation with originally asymmetric technical gap between the plug and surrounding rock, for the purpose of investigation of the role of gaps, a simplified 2D axisymmetric model is used.n

Druh

D - Stať ve sborníku

CEP obor

DH - Báňský průmysl včetně těžby a zpracování uhlí

OECD FORD obor

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Projekt

<a href="/cs/project/LQ1602" target="_blank" >LQ1602: IT4Innovations excellence in science</a><br>

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

45. Geomechanik - Kolloquium

ISBN

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ISSN

1611-1605

e-ISSN

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Počet stran výsledku

15

Strana od-do

205-219

Název nakladatele

Technische Universität Bergakademie Freiberg, Institut für Geotechnik

Místo vydání

Freiberg

Místo konání akce

Freiberg

Datum konání akce

11. 11. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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