沥青路面层间粘结状况的三维正交模拟和探地雷达探测

IF 2.7 3区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Measurement Science and Technology Pub Date : 2024-06-13 DOI:10.1088/1361-6501/ad57d8

Jiangang Yang, Shenggang Yang, Yuquan Yao, Jie Gao, Shuyi Wang

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引用次数: 0

摘要

评估三维探地雷达（GPR）在评估半刚性基层沥青路面层间粘结情况中的适用性，并分析 GPR 的探测机制。使用正演模拟创建各种介质模型，并分析电磁波在空气、水和沙子中的传输。对四种不同的路面结构进行了 GPR 测试，利用振幅强度水平和图像处理技术评估了沥青路面层间粘结情况，并将结果与岩芯样本进行了对比验证。研究结果表明，电磁波传输过程受到介质均匀性的显著影响。非均匀介质模型会产生大量杂散波，类似于典型的 "噪音"，与实际路面状况非常接近。粘结不良的区域表现出更清晰的双曲波纹，这主要是由于填充材料的介电常数存在显著差异。振幅强度有效评估了不同沥青路面结构和车道的粘结情况，通常呈正态分布。层间接触增强与振幅变小相关，而粘结变弱则导致振幅变大。车道中心的振幅分布与轮迹区有很大不同，中心车道的层间粘结情况优于轮迹带。此外，雷达平面图在不同层间接触条件下表现出相当大的差异。图像处理方法可以评估全断面不同路面结构的层间接触状况。

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Three-Dimensional Orthorectified Simulation and Ground Penetrating Radar Detection of Interlayer Bonding Condition in Asphalt Pavements

To assess three-dimensional ground-penetrating radar (GPR) applicability for evaluating interlayer bonding in asphalt pavements with semi-rigid base layers, and analysis the GPR detection mechanism. Using forward simulation to create various medium models and analyze electromagnetic wave transmission in air, water, and sand. Four distinct pavement structures were subjected to GPR testing, and the amplitude intensity levels and image processing techniques to assess asphalt pavement interlayer bonding, and validated by comparing the results with core samples. The findings revealed that electromagnetic wave transmission processes were significantly influenced by medium uniformity. Non-uniform medium models generated considerable stray waves, akin to typical "noise," closely mirroring real pavement conditions. Poorly bonded areas exhibited clearer hyperbolic ripples, primarily due to significant differences in 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, and the interlayer bonding condition of center lanes was better than wheel track belt. Additionally, radar plan views exhibited considerable variation across different interlayer contact conditions. The image processing method can evaluate the interlayer contact condition of different pavement structures across full cross-sections.

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来源期刊

Measurement Science and Technology 工程技术-工程：综合

CiteScore

4.30

自引率

16.70%

发文量

656

审稿时长

4.9 months

期刊介绍： Measurement Science and Technology publishes articles on new measurement techniques and associated instrumentation. Papers that describe experiments must represent an advance in measurement science or measurement technique rather than the application of established experimental technique. Bearing in mind the multidisciplinary nature of the journal, authors must provide an introduction to their work that makes clear the novelty, significance, broader relevance of their work in a measurement context and relevance to the readership of Measurement Science and Technology. All submitted articles should contain consideration of the uncertainty, precision and/or accuracy of the measurements presented. Subject coverage includes the theory, practice and application of measurement in physics, chemistry, engineering and the environmental and life sciences from inception to commercial exploitation. Publications in the journal should emphasize the novelty of reported methods, characterize them and demonstrate their performance using examples or applications.