在薄层半刚性基层青路面上使用加权声压水平检测脱的声学检测
Changfeng Hao1, Min Ye1, Qing Zhang2
1National Engineering Research Center of Highway Maintenance Equipment, Chang'an University, Xi'an, Shaanxi, China.
PloS one
|October 30, 2025
概括
这项研究引入了一种新的声学方法来检测路面损坏. 这种先进的技术可靠地识别了薄薄的脱皮层,改善了早期的道路维护.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 声学 声学 在声学方面
背景情况:
- 薄层间层在半刚性基础青路面上脱,对于传统的检测方法来说是一个重大挑战,因为它们的灵敏度很低.
- 早期发现路面损坏对于有效的维护和基础设施寿命至关重要.
研究的目的:
- 开发和验证一种基于声学的新方法,用于检测青路面中小规模的脱.
- 提高路面损坏检测的灵敏度,超出现有技术的能力,如地面透雷达 (GPR).
主要方法:
- 开发一个分布式弹性变量缓冲 (DEVD) 麦克斯韦模型来分析声信号.
- 整合数值模拟和实体实验以评估各种条件下的声响应.
- 引入A级加权声压水平 (SPL) 指数,用于量化解锁的严重性.
主要成果:
- 在A级加权声学指标和层间解的区域之间建立了强烈的相关性.
- 拟议的声学方法成功地检测出了传统GPR无法检测到的薄薄的解层.
- 德维德麦克斯韦模型和A加权的SPL指数显示出对细微路面损坏的灵敏度更高.
结论:
- 这种基于声学的新型检测方法提供了一个高度灵敏的,非破坏性的工具,用于早期识别在青路面上薄层间层的脱.
- 这种方法在改进路面管理策略和延长道路基础设施使用寿命方面具有重大潜力.
- 通过先进的声学监测,这些发现为更积极,更有效的道路维护实践铺平了道路.
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