Experimental Study of Small Strain Stiffness of Unsaturated Silty Clay

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10392010" target="_blank" >RIV/00216208:11310/18:10392010 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/978-3-319-97112-4_129" target="_blank" >https://doi.org/10.1007/978-3-319-97112-4_129</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/978-3-319-97112-4_129" target="_blank" >10.1007/978-3-319-97112-4_129</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Study of Small Strain Stiffness of Unsaturated Silty Clay

Popis výsledku v původním jazyce

The small strain stiffness of saturated soils has been extensively studied in the past decades, and therefore the literature database of small strain stiffness of different soils is vast and contains the necessary information for development and calibration of numerical models. However, there is a lack of data of small strain stiffness in case of unsaturated soils. This paper presents the stiffness of unsaturated silty clay in both small and very small strain regions. The laboratory tests were carried out in the double-walled cell triaxial apparatus with HAEV (high air entry value) ceramic disk mounted in the base pedestal, and the axis translation technique was used. The reconstituted specimens of 70 mm in diameter were tested and the very small strain stiffness was measured by bender elements, while in the case of the small strain stiffness measurement, the submersible LVDTs were used. Different stress paths were applied, and every stress change was followed by an equalization period. Subsequently, the very small strain shear modulus (G0) was determined by bender elements, and its decay in the small strain range was determined using short shear probes of up to 30 kPa.

Název v anglickém jazyce

Experimental Study of Small Strain Stiffness of Unsaturated Silty Clay

Popis výsledku anglicky

The small strain stiffness of saturated soils has been extensively studied in the past decades, and therefore the literature database of small strain stiffness of different soils is vast and contains the necessary information for development and calibration of numerical models. However, there is a lack of data of small strain stiffness in case of unsaturated soils. This paper presents the stiffness of unsaturated silty clay in both small and very small strain regions. The laboratory tests were carried out in the double-walled cell triaxial apparatus with HAEV (high air entry value) ceramic disk mounted in the base pedestal, and the axis translation technique was used. The reconstituted specimens of 70 mm in diameter were tested and the very small strain stiffness was measured by bender elements, while in the case of the small strain stiffness measurement, the submersible LVDTs were used. Different stress paths were applied, and every stress change was followed by an equalization period. Subsequently, the very small strain shear modulus (G0) was determined by bender elements, and its decay in the small strain range was determined using short shear probes of up to 30 kPa.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10505 - Geology

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of China-Europe Conference on Geotechnical Engineering

ISBN

978-3-319-97115-5

ISSN

1866-8755

e-ISSN

neuvedeno

Počet stran výsledku

4

Strana od-do

578-581

Název nakladatele

Institut für Geotechnik Universität für Bodenkultur

Místo vydání

Vienna

Místo konání akce

Vídeň

Datum konání akce

13. 8. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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