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

Artagan, Salih Serkan; Borecky, Vladislav

doi:10.1016/j.ndteint.2020.102290

Cited by 33 publications

(20 citation statements)

References 40 publications

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“…Based on in situ observations and laboratory tests of the materials taken from the site, and the values published for that particular type of ballast (granite) in various studies [31][32][33][34]51,52], authors suggest fouling categories based on RDP/EMWV intervals in Table 7. It should be noted that the suggested values apply solely to the local conditions of railway track sections surveyed in the present study and the parameters (frequency and orientation) of used GPR equipment.…”

Section: Discussionmentioning

confidence: 99%

“…GPR surveys repeated in regular time intervals facilitate the estimation of the status and degradation pace of the ballast layer, which might assist to optimize the overall maintenance action plan through effective scheduling of required short, medium, and long-term maintenance activities with remarkable savings associated with cost and time [35]. As also mentioned in a recent article by Artagan and Borecky [34], numerous scientists, partially or wholly, handled the evaluation of railway ballast fouling and thickness using several attributes of GPR signal in their researches [7,28,[33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49]. GPR tests were performed on a model rail line track of various ballast states utilizing antennas with different frequencies in the work by Su et al [39].…”

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confidence: 99%

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Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology

et al. 2021

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Ground Penetrating Radar (GPR) has been used recently for diagnostics of the railway infrastructure, particularly the ballast layer. To overcome ballast fouling, mechanized ballast cleaning process, which increases track occupancy time and cost, is usually used. Hence it is of crucial significance to identify at which stage of track ballast life cycle, and level of fouling, ballast cleaning should be initiated. In the present study, a series of in situ GPR surveys on selected railway track sections in Czechia was performed to obtain railway granite ballast relative dielectric permittivity (RDP) values in several phases of railway track lifecycle. GPR data were collected in the form of B-scan, and time-domain analysis was used for post-processing. The results indicate (i) change of railway ballast RDP in time (long term); (ii) a dependency of ballast fouling level on RDP; and (iii) the RDP change during the ballast cleaning process, thus its efficiency. This research aimed to provide new perspectives into the decision-making process in initiating the mechanized ballast cleaning intervention based on the GPR-measured data.

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confidence: 99%

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Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology

et al. 2021

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“…Artagan et al [ 63 ] in an indoor laboratory built a ballast box filled by ballast samples with different fouling sources and water contents, as shown in Figure 10 . The 2 GHz air-coupled and 400/900 MHz dual-band ground-coupled antennas are used.…”

Section: Gpr Applicationsmentioning

confidence: 99%

“… ( a – f ) demonstrate the whole testing procedure, including test set-up, test conditions and GPR positions. Test configurations of ballast box with ballast particles and fouling (figure reproduced from [ 63 ]). …”

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confidence: 99%

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State-of-the-Art Review of Ground Penetrating Radar (GPR) Applications for Railway Ballast Inspection

Wang

Liu

Jing

et al. 2022

Sensors

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In the past 20 years, many studies have been performed on ballast layer inspection and condition evaluation with ground penetrating radar (GPR). GPR is a non-destructive means that can reflect the ballast layer condition (fouling, moisture) by analysing the received signal variation. Even though GPR detection/inspection for ballast layers has become mature, some challenges still need to be stressed and solved, e.g., GPR indicator (for reflecting fouling level) development, quantitative evaluation for ballast fouling levels under diverse field conditions, rapid GPR inspection, and combining analysis of GPR results with other data (e.g., track stiffness, rail acceleration, etc.). Therefore, this paper summarised earlier studies on GPR application for ballast layer condition evaluation. How the GPR was used in the earlier studies was classified and discussed. In addition, how to correlate GPR results with ballast fouling level was also examined. Based on the summary, future developments can be seen, which is helpful for supplementing standards of ballast layer evaluation and maintenance.

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Non-destructive technologies for sustainable assessment and monitoring of railway infrastructure: a focus on GPR and InSAR methods

et al. 2021

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Health monitoring of ballast in railway infrastructures is crucial to assure structural stability and efficiency of the operations. To this extent, an efficient and sustainable management of maintenance is fundamental for asset managers in setting up strategic and effective action plans.Amongst the available methods to assess the conditions of railway infrastructures, non-destructive technologies (NDT) are gaining popularity due to their capability to overcome main drawbacks of traditional routine methods, such as digging trenches and visually inspect locations assumed as critical along the track.The present paper presents an overview of the use of the Ground Penetrating Radar (GPR) and the Interferometric Synthetic Aperture (InSAR) technologies for a sustainable monitoring of railway infrastructures. Specifically, main traditional and non-destructive methods used for maintenance of railway ballast materials are presented with a special focus on their sustainability. A review about the research methods on the use of GPR and InSAR technologies for railway infrastructures also reported, including main investigations carried out in the laboratory and the real-life environments. Furthermore, a conceptual framework based on an integrated approach including satellite-based and ground-based investigations is proposed, where network and local level information can be merged for the detection of critical sections and the implementation of a more advanced predictive maintenance system.

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

Cited by 33 publications

References 40 publications

Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology

Quantification of the Mechanized Ballast Cleaning Process Efficiency Using GPR Technology

State-of-the-Art Review of Ground Penetrating Radar (GPR) Applications for Railway Ballast Inspection

Non-destructive technologies for sustainable assessment and monitoring of railway infrastructure: a focus on GPR and InSAR methods

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