Detection of Permafrost Subgrade  Using GPR: A Case Examination  on Qinghai-Tibet Plateau

Guo, Zhenwei; Dong, Hefeng; Xiao, Jianping

doi:10.4236/gep.2015.35005

Cited by 5 publications

(2 citation statements)

References 12 publications

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“…GPR has been used in a wide range of applications for railway infrastructure monitoring including the evaluation of layer thicknesses [77], the investigation of the embankment stability [78], [79] the localisation of trapped water areas [80], the indirect estimation of the track modulus [81], and the detection of permafrost sections [82], [ 83], [84], [85]. A recursive repetition of GPR measurements over time allows to predict the deterioration rate of a track substructure and to control the effectiveness of maintenance activities.…”

Section: Research Methods On the Use Of Insar And Gpr Techniques In R...mentioning

confidence: 99%

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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Section: Research Methods On the Use Of Insar And Gpr Techniques In R...mentioning

confidence: 99%

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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“…It is worthy of mention that the railway industry has initiated use of GPR technology in mid-nineties in Europe (mainly in Switzerland, UK, Finland), and North America (Saarenketo 2006). GPR has been used in a wide range of applications for railway infrastructure monitoring including the determination of layer thicknesses (Fernandes et al 2008), investigation of the embankment stability (Sussmann et al 2003;Donohue et al 2011), localisation of trapped water areas (Hyslip et al 2003), indirect estimation of track modulus from GPR (Narayanan et al 2004), detection of permafrost sections (Saarenketo et al 2003;Du et al 2011;Nurmikolu 2012;Guo et al 2015). A repetition of GPR measurements over time allows to predict the deterioration rate of a track substructure (especially ballast) and to control the effectiveness of maintenance activities.…”

Section: Ground Penetrating Radar (Gpr)mentioning

confidence: 99%

Non-destructive Assessment and Health Monitoring of Railway Infrastructures

et al. 2019

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A continuous increase of the demand for high-speed traffic, freight tonnage as well as of the train operating frequency is worsening the decay conditions of many railway infrastructures. This occurrence affects economy-related business as well as it contributes to raise maintenance cost. It is known that a failure of a railway track may result in tremendous economic losses, law liabilities, service interruptions and, eventually, fatalities. Parallel to this, requirements to maintain acceptable operational standards are very demanding. In addition to the above, a main issue nowadays in railway engineering is a general lack of funds to allow safety and comfort of the operations as well as a proper maintenance of the infrastructures. This is mostly the result of a traditional approach that, on average, tends to invest on high-priority cost, such as safety-related cost, compromising lower-priority cost (e.g., quality and comfort of the operations). A solution to correct this trend can be to move from a reactive to a proactive action planning approach in order to limit more effectively the likelihood of progressive track decay. Within this context, this paper reports a review on the use of traditional and non-destructive testing (NDT) methods for assessment and health monitoring of railway infrastructures. State-of-the-art research on a stand-alone use of NDT methods or a combination of them for specific maintenance tasks in railways is discussed.

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

Artagan

Borecky

2020

NDT & E International

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Detection of Permafrost Subgrade Using GPR: A Case Examination on Qinghai-Tibet Plateau

Cited by 5 publications

References 12 publications

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

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

Non-destructive Assessment and Health Monitoring of Railway Infrastructures

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

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