Advances in the nondestructive condition assessment of railway ballast: A focus on GPR

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25510%2F20%3A39916558" target="_blank" >RIV/00216275:25510/20:39916558 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.ndteint.2020.102290" target="_blank" >https://doi.org/10.1016/j.ndteint.2020.102290</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ndteint.2020.102290" target="_blank" >10.1016/j.ndteint.2020.102290</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Advances in the nondestructive condition assessment of railway ballast: A focus on GPR

Popis výsledku v původním jazyce

This paper addresses the use of nondestructive Ground Penetrating Radar (GPR) methodology in the investigation of railway ballast under a diverse set of fouling and moisture conditions through comprehensive laboratory experiments and field track surveys. Granite ballast and three fouling agents; sand, gravel, and the mixture of these two materials were used in the laboratory tests. Numerous estimation methods were employed to attain the Relative Dielectric Permittivity (RDP) of the ballast using 2 GHz air-coupled antenna for the laboratory tests. Experimentally obtained RDP values were verified by the theory-based mixing model. Field track GPR surveys using miscellaneous frequencies (400, 900, and 2000 MHz) were undertaken, where the same type of granite ballast used in the laboratory tests, were laid along a track section composed of metal, wooden and concrete sleepers. Using the laboratory-measured RDP values, the data from field track surveys and ground-truth data were in good agreement. The results of this paper confirm the efficiency and the eligibility of the GPR technique in condition assessment of railway granite ballast using various frequencies and orientations of antennas.

Název v anglickém jazyce

Advances in the nondestructive condition assessment of railway ballast: A focus on GPR

Popis výsledku anglicky

This paper addresses the use of nondestructive Ground Penetrating Radar (GPR) methodology in the investigation of railway ballast under a diverse set of fouling and moisture conditions through comprehensive laboratory experiments and field track surveys. Granite ballast and three fouling agents; sand, gravel, and the mixture of these two materials were used in the laboratory tests. Numerous estimation methods were employed to attain the Relative Dielectric Permittivity (RDP) of the ballast using 2 GHz air-coupled antenna for the laboratory tests. Experimentally obtained RDP values were verified by the theory-based mixing model. Field track GPR surveys using miscellaneous frequencies (400, 900, and 2000 MHz) were undertaken, where the same type of granite ballast used in the laboratory tests, were laid along a track section composed of metal, wooden and concrete sleepers. Using the laboratory-measured RDP values, the data from field track surveys and ground-truth data were in good agreement. The results of this paper confirm the efficiency and the eligibility of the GPR technique in condition assessment of railway granite ballast using various frequencies and orientations of antennas.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20104 - Transport engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

NDT &amp; E International

ISSN

0963-8695

e-ISSN

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Svazek periodika

115

Číslo periodika v rámci svazku

říjen, 2020

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

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Kód UT WoS článku

000571492200005

EID výsledku v databázi Scopus

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