Ground penetrating radar detection of buried depth of pavement internal crack in asphalt surface: A study based on multiphase heterogeneous model

Fan, Jianwei; Ma, Tao; Zhu, Yajing; Zhang, Yiming

doi:10.1016/j.measurement.2023.113531

Cited by 3 publications

(1 citation statement)

References 36 publications

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“…However, it is important to note that asphalt pavement surfaces are comprised of a multiphase, nonuniform medium, consisting of asphalt binder, aggregates, and air. Therefore, establishing a non-uniform medium model aligns better with real-world scenarios, resulting in more reliable simulation outcomes [31][32][33][34][35].…”

Section: Modeling Forward Simulationmentioning

confidence: 99%

Three-dimensional orthorectified simulation and ground penetrating radar detection of interlayer bonding condition in asphalt pavements

Yang,

Yao

et al. 2024

Meas. Sci. Technol.

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To evaluate the applicability of three-dimensional ground-penetrating radar (GPR) in assessing interlayer bonding within asphalt pavements featuring semi-rigid base layers, we conducted an analysis of the GPR detection mechanism. Employing forward simulation, various medium models were created to analyze electromagnetic wave transmission in air, water, and sand. GPR testing was applied to four distinct pavement structures, utilizing amplitude intensity levels and image processing techniques to assess asphalt pavement interlayer bonding. The results were validated by comparing them with core samples. The findings revealed a significant influence of medium uniformity on electromagnetic wave transmission processes. Non-uniform media models generate a large number of clutter waves, which refers to amplitudes and phases that have no predictable regularity in time and space i.e., they show irregular ups and downs and fluctuations. It is similar to the clutter that occurs during actual detection. Poorly bonded areas exhibited clearer hyperbolic ripples, primarily attributed to significant differences in the dielectric constants of filling materials. Amplitude strength effectively evaluated bonding across different asphalt pavement configurations and lanes, typically following a normal distribution. Enhanced interlayer contact correlated with smaller amplitudes, while weaker bonding led to larger amplitudes. The amplitude distribution in the center of lanes differed significantly from wheel track areas, indicating better interlayer bonding conditions in the center lanes compared to the wheel track belt. Moreover, radar plan views demonstrated considerable variation across different interlayer contact conditions. The image processing method proved effective in evaluating the interlayer contact condition of various pavement structures across full cross-sections.

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Section: Modeling Forward Simulationmentioning

confidence: 99%

Three-dimensional orthorectified simulation and ground penetrating radar detection of interlayer bonding condition in asphalt pavements

Yang,

Yao

et al. 2024

Meas. Sci. Technol.

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Research on the Dielectric Properties of Asphalt Concrete Based on Equivalent Circuit Modeling

Zhong,

Wang,

Zhang

2024

J. Mater. Civ. Eng.

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Refined Modeling of Heterogeneous Medium for Ground-Penetrating Radar Simulation

Liu,

Dai,

Zou

et al. 2024

Remote Sensing

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Ground-penetrating radar (GPR) has been widely used for subsurface detection and testing. Numerical simulations of GPR signal are commonly performed to aid the interpretation of subsurface structures and targets in complex environments. To enhance the accuracy of GPR simulations on heterogeneous medium, this paper proposes a hybrid modeling method that combines the discrete element method with a component fusion strategy (DEM–CFS). Taking the asphalt pavement as an example, three 3D stochastic models with distinctly different porosities are constructed by the DEM–CFS method. Firstly, the DEM is utilized to establish the spatial distribution of random coarse aggregates. Then, the component fusion strategy is employed to integrate other components into the coarse aggregate skeleton. Finally, the GPR response of the constructed asphalt models is simulated using the finite-difference time-domain method. The proposed modeling method is validated through both numerical and laboratory experiments and demonstrates high precision. The results indicate that the proposed modeling method has high accuracy in predicting the dielectric constant of heterogeneous media, as generated models are closely aligned with real-world conditions.

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Ground penetrating radar detection of buried depth of pavement internal crack in asphalt surface: A study based on multiphase heterogeneous model

Cited by 3 publications

References 36 publications

Three-dimensional orthorectified simulation and ground penetrating radar detection of interlayer bonding condition in asphalt pavements

Three-dimensional orthorectified simulation and ground penetrating radar detection of interlayer bonding condition in asphalt pavements

Research on the Dielectric Properties of Asphalt Concrete Based on Equivalent Circuit Modeling

Refined Modeling of Heterogeneous Medium for Ground-Penetrating Radar Simulation

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