Implications of the atmosphere-soil interaction for the design of earth retaining structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F16%3A10330837" target="_blank" >RIV/00216208:11310/16:10330837 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/e3sconf/20160912002" target="_blank" >http://dx.doi.org/10.1051/e3sconf/20160912002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/e3sconf/20160912002" target="_blank" >10.1051/e3sconf/20160912002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Implications of the atmosphere-soil interaction for the design of earth retaining structures

Popis výsledku v původním jazyce

The performance of most geotechnical structures is highly governed by environmental factors, particularly in tropical regions where there are very pronounced dry and wet seasons. Design of earth retaining structures generally tend to be too conservative due to the uncertainty generated by the incorporation of environmental variables. Those variables control the soil unsaturated response and in addition to the known insufficiency of the basic models used in traditional designs they are responsible for conservative designs. Rainfall is the main aspect that affects the soil properties of a particular site. It modifies the soil suction potential, according to the degree of saturation caused by the soil-atmosphere interaction. Currently, state-of-the-art numerical tools allow to simulate the influence of those variables in the behaviour of earth retaining structures. This paper analyses the possible implications of the use of numerical simulations for the design, which include, in the mathematical formulation, the suction as a main parameter. The hypoplastic model for unsaturated response was used. Numerical simulations performed with the use of traditional and modern constitutive models obtained encouraging results that reveal the importance of include suction in design processes.

Název v anglickém jazyce

Implications of the atmosphere-soil interaction for the design of earth retaining structures

Popis výsledku anglicky

The performance of most geotechnical structures is highly governed by environmental factors, particularly in tropical regions where there are very pronounced dry and wet seasons. Design of earth retaining structures generally tend to be too conservative due to the uncertainty generated by the incorporation of environmental variables. Those variables control the soil unsaturated response and in addition to the known insufficiency of the basic models used in traditional designs they are responsible for conservative designs. Rainfall is the main aspect that affects the soil properties of a particular site. It modifies the soil suction potential, according to the degree of saturation caused by the soil-atmosphere interaction. Currently, state-of-the-art numerical tools allow to simulate the influence of those variables in the behaviour of earth retaining structures. This paper analyses the possible implications of the use of numerical simulations for the design, which include, in the mathematical formulation, the suction as a main parameter. The hypoplastic model for unsaturated response was used. Numerical simulations performed with the use of traditional and modern constitutive models obtained encouraging results that reveal the importance of include suction in design processes.

Druh

D - Stať ve sborníku

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

—

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

3RD EUROPEAN CONFERENCE ON UNSATURATED SOILS - E-UNSAT 2016

ISBN

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ISSN

2267-1242

e-ISSN

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Počet stran výsledku

6

Strana od-do

—

Název nakladatele

E D P SCIENCES

Místo vydání

CEDEX A

Místo konání akce

Paris

Datum konání akce

12. 9. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387533300098