Mechanisms controlling the behaviour of double-porosity clay fills; in situ abd centrifuge study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10082298" target="_blank" >RIV/00216208:11310/10:10082298 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mechanisms controlling the behaviour of double-porosity clay fills; in situ abd centrifuge study

Popis výsledku v původním jazyce

Two instrumented embankments built on a double-porosity landfill of clayey lumps were monitored in situ and modelled in a centrifuge. The field measurements showed high compressibility of the landfill. Introductory modelling in a mini-centrifuge and oedometer testing demonstrated irreversible deformation at low stress ranges, and reversible deformation (swelling) at higher stresses, similarly to the behaviour of reconstituted material. Dry filling followed by saturation was recommended with respect to further development of the landfills in future. The geotechnical centrifuge models confirmed that permeability was controlled by the complex structure of the clayfills. There were significant initial settlements on loading due to compression of open macrovoids. The double porosity structure in the fresh fill allowed excess pore pressures to dissipate quickly. Thereafter, dissipation was controlled by the permeability of the intragranular pores in the clay, once the intergranular pores ha

Název v anglickém jazyce

Mechanisms controlling the behaviour of double-porosity clay fills; in situ abd centrifuge study

Popis výsledku anglicky

Two instrumented embankments built on a double-porosity landfill of clayey lumps were monitored in situ and modelled in a centrifuge. The field measurements showed high compressibility of the landfill. Introductory modelling in a mini-centrifuge and oedometer testing demonstrated irreversible deformation at low stress ranges, and reversible deformation (swelling) at higher stresses, similarly to the behaviour of reconstituted material. Dry filling followed by saturation was recommended with respect to further development of the landfills in future. The geotechnical centrifuge models confirmed that permeability was controlled by the complex structure of the clayfills. There were significant initial settlements on loading due to compression of open macrovoids. The double porosity structure in the fresh fill allowed excess pore pressures to dissipate quickly. Thereafter, dissipation was controlled by the permeability of the intragranular pores in the clay, once the intergranular pores ha

Druh

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

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F07%2F0678" target="_blank" >GA103/07/0678: Parametry konstitučních vztahů pro nenasycené jílovité výsypky</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Quarterly Journal of Engineering Geology and Hydrogeology

ISSN

1470-9236

e-ISSN

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Svazek periodika

43

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

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Kód UT WoS článku

000278335800007

EID výsledku v databázi Scopus

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