An experimental way of the quantification of the confinement effect in the mechanically stabilized layer by measuring horizontal pressures generated by static load

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F24%3A00368381" target="_blank" >RIV/68407700:21110/24:00368381 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1201/9781003386889-221" target="_blank" >http://dx.doi.org/10.1201/9781003386889-221</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1201/9781003386889-221" target="_blank" >10.1201/9781003386889-221</a>

Jazyk výsledku

angličtina

Název v původním jazyce

An experimental way of the quantification of the confinement effect in the mechanically stabilized layer by measuring horizontal pressures generated by static load

Popis výsledku v původním jazyce

Four laboratory models filled with aggregates with fractions 0–32 mm were prepared in a special laboratory box with dimensions of 1000 x 1000 x 600 mm. Three models were fitted with a geogrid, which, together with the aggregates, formed a mechanically stabilized layer (MSL), 100, 150 and 200 mm in thickness, while one model, without a geogrid, served as a reference model. A new-generation – multiaxial – geogrid was used for the experiments. The models were loaded with a static force of up to 100 kN with the aim of finding out the differences in the magnitude of lateral pressures acting on the laboratory box wall. The experiments revealed principal reductions in the horizontal pressures in the mechanically stabilized layer compared to nonstabilized aggregates. The greatest reductions were recorded at the geogrid level, nevertheless, a significant reduction in horizontal pressures is manifested throughout the entire MSL. The intensity of the aggregate confinement in the geogrid is related to the reduction in horizontal pressures and quantified as a parameter enabling the evaluation of the efficiency of mechanical stabilization of aggregates by geogrids – the Confinement Efficiency Factor (CEF).

Název v anglickém jazyce

An experimental way of the quantification of the confinement effect in the mechanically stabilized layer by measuring horizontal pressures generated by static load

Popis výsledku anglicky

Four laboratory models filled with aggregates with fractions 0–32 mm were prepared in a special laboratory box with dimensions of 1000 x 1000 x 600 mm. Three models were fitted with a geogrid, which, together with the aggregates, formed a mechanically stabilized layer (MSL), 100, 150 and 200 mm in thickness, while one model, without a geogrid, served as a reference model. A new-generation – multiaxial – geogrid was used for the experiments. The models were loaded with a static force of up to 100 kN with the aim of finding out the differences in the magnitude of lateral pressures acting on the laboratory box wall. The experiments revealed principal reductions in the horizontal pressures in the mechanically stabilized layer compared to nonstabilized aggregates. The greatest reductions were recorded at the geogrid level, nevertheless, a significant reduction in horizontal pressures is manifested throughout the entire MSL. The intensity of the aggregate confinement in the geogrid is related to the reduction in horizontal pressures and quantified as a parameter enabling the evaluation of the efficiency of mechanical stabilization of aggregates by geogrids – the Confinement Efficiency Factor (CEF).

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/CK02000293" target="_blank" >CK02000293: Adaptace francouzské metody hodnocení konstrukce pražcového podloží pro vysokorychlostní železniční tratě do podmínek ČR</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název statě ve sborníku

Geosynthetics: Leading the Way to a Resilient Planet

ISBN

978-1-003-38688-9

ISSN

—

e-ISSN

—

Počet stran výsledku

6

Strana od-do

1681-1686

Název nakladatele

Taylor & Francis Group

Místo vydání

Londýn

Místo konání akce

Roma

Datum konání akce

17. 9. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001238801000221