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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
An experimental way of the quantification of the confinement effect in the mechanically stabilized layer by measuring horizontal pressures generated by static load
Original language description
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).
Czech name
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Czech description
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Project
<a href="/en/project/CK02000293" target="_blank" >CK02000293: Adaptation of the French method of evaluation of track substructure for high-speed lines into the Czech Republic conditions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Geosynthetics: Leading the Way to a Resilient Planet
ISBN
978-1-003-38688-9
ISSN
—
e-ISSN
—
Number of pages
6
Pages from-to
1681-1686
Publisher name
Taylor & Francis Group
Place of publication
Londýn
Event location
Roma
Event date
Sep 17, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001238801000221

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