An investigation of the effect of under-ballast reinforcing geogrids in laboratory and operating conditions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F10%3A00168239" target="_blank" >RIV/68407700:21110/10:00168239 - 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

An investigation of the effect of under-ballast reinforcing geogrids in laboratory and operating conditions

Popis výsledku v původním jazyce

The article presents the results of research focused on the use of reinforcing geosynthe-tics inserted directly under the ballast. This technology appears to be a beneficial, cost-effective solution in cases of need for enhancing the bearing capacity ofexisting railway tracks with poorer track bed quality. Model constructions in a 1:1 scale with reinforcing geogrids of three types inserted under the ballast were investigated in laboratory conditions under short-term static loading and long-term cyclicloading. The contribution of geosynthetics is evaluated by comparing the values of settlement and bearing capacity of individual layers with those of a non-reinforced construction. The article also describes the up-to-date experience in the verificationof the geocomposite-reinforced ballast bed in operating conditions. It is performed on a trial section of a single-rail track 200 m in length characterized by persisting long-term problems with the track geometry.

Název v anglickém jazyce

An investigation of the effect of under-ballast reinforcing geogrids in laboratory and operating conditions

Popis výsledku anglicky

The article presents the results of research focused on the use of reinforcing geosynthe-tics inserted directly under the ballast. This technology appears to be a beneficial, cost-effective solution in cases of need for enhancing the bearing capacity ofexisting railway tracks with poorer track bed quality. Model constructions in a 1:1 scale with reinforcing geogrids of three types inserted under the ballast were investigated in laboratory conditions under short-term static loading and long-term cyclicloading. The contribution of geosynthetics is evaluated by comparing the values of settlement and bearing capacity of individual layers with those of a non-reinforced construction. The article also describes the up-to-date experience in the verificationof the geocomposite-reinforced ballast bed in operating conditions. It is performed on a trial section of a single-rail track 200 m in length characterized by persisting long-term problems with the track geometry.

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

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Návaznosti

R - Projekt Ramcoveho programu EK

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

ISSN

0954-4097

e-ISSN

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Svazek periodika

224

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

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Kód UT WoS článku

000280565100005

EID výsledku v databázi Scopus

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