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2021 | OriginalPaper | Buchkapitel

Capturing the Moving Deflection Basin Under a Traffic Speed Deflectometer

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Abstract

In recent years, several different high-speed deflection testing devices have become available worldwide. One such device is the Traffic Speed Deflectometer (TSD). ARRB owns and operates two TSDs in Australia and New Zealand and they are also known as iPAVE (intelligent Pavement Assessment Vehicle). This study benchmarks iPAVE results against results obtained with an in-situ array embedded in the pavement at a site established in the state of Queensland, Australia. The embedded array allows for capturing the moving deflection basin under the iPAVe’s wheel(s). The study also focuses on signal processing techniques that can be used to work with geophone data and the integration of pavement velocities to pavement displacements which is the metric commonly used for pavement evaluations.

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Fußnoten
1
The term unweighted velocity indicates that the effects of the geophone’s non-linear characteristics have been (at least partially) compensated for.
 
Literatur
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Zurück zum Zitat Lee, J., Duschlbauer, D., Chai, G.: Ground instrumentation for traffic speed deflectometer (TSD). In: Western Australian Road Research and Innovation Program (WARRIP) report (2019) Lee, J., Duschlbauer, D., Chai, G.: Ground instrumentation for traffic speed deflectometer (TSD). In: Western Australian Road Research and Innovation Program (WARRIP) report (2019)
Zurück zum Zitat Lee, J., Duschlbauer, D.: Pavement vibration measurements for Falling Weight Deflectometer and Moving Vehicle Loads. In: 17th AAPA International Flexible Pavements Conference 2017 (2017) Lee, J., Duschlbauer, D.: Pavement vibration measurements for Falling Weight Deflectometer and Moving Vehicle Loads. In: 17th AAPA International Flexible Pavements Conference 2017 (2017)
Zurück zum Zitat Rada, G., Nazarian, S., Visintine, B., Siddharthan, R., Thyagarajan, S.: FHWA-HRT-15–074 report Pavement Structural Evaluation at the Network Level: Final Report (2016) Rada, G., Nazarian, S., Visintine, B., Siddharthan, R., Thyagarajan, S.: FHWA-HRT-15–074 report Pavement Structural Evaluation at the Network Level: Final Report (2016)
Zurück zum Zitat Velarde, J.A., Rocha, S., Nazarian, S., Rada, G., Thyagarajan, S., Siddharthan, R.V.: Use of embedded sensors to evaluate performance of traffic speed deflection devices. Journal of Testing and Evaluation, 45(4) (2017) Velarde, J.A., Rocha, S., Nazarian, S., Rada, G., Thyagarajan, S., Siddharthan, R.V.: Use of embedded sensors to evaluate performance of traffic speed deflection devices. Journal of Testing and Evaluation, 45(4) (2017)
Metadaten
Titel
Capturing the Moving Deflection Basin Under a Traffic Speed Deflectometer
verfasst von
Dominik Duschlbauer
Jeffrey Lee
Copyright-Jahr
2021
DOI
https://doi.org/10.1007/978-3-030-79638-9_3