Investigation on vibration field of concrete pavement using distributed optical fiber sensors

This paper aims to use distributed optical fiber sensing (DOFS) technology to study the vibration field of concrete pavement. First, a prototype system based on DOFS technology was developed to measure vibration with high frequency and spatial resolution. Secondly, a corresponding signal processing method is proposed to analyze the vibration signal and reconstruct the time-space vibration field of the concrete pavement. Third, an accelerated pavement test and a real traffic test are carried out to study the vibration field in different traffic conditions. The experiment results indicate that the pavement vibration field can be constructed with a high sampling frequency (2500 Hz) and spatial resolution (0.15 m) through DOFS technology with the prototype system. The spatial positioning accuracy of DOFS is higher at low vehicle speeds or high load levels. In addition, the vibration signal energy at the peak point can reflect the weight of the vehicle. The results show that DOFS in the longitudinal layout has better spatial localizing performance than the cross-sectional one. The research work has brought about DOFS’s prospect in pavement vibration monitoring and shows its potential for weigh-in-motion and localization of vehicles.

• Record URL:
  • https://annualmeeting.mytrb.org/OnlineProgram/Details/17356
• Supplemental Notes:
  • This paper was sponsored by TRB committee AKP40 Standing Committee on Pavement Structural Testing and Evaluation.
• Corporate Authors:

  Transportation Research Board

  ,    
• Authors:
  • Gao, Dachen
  • Zeng, Mengyuan
  • Zhao, Hongduo
  • Bian, Zeying
  • Peng, Kedi
• Conference:
  • Transportation Research Board 101st Annual Meeting
  • Location: Washington DC, United States
  • Date: 2022-1-9 to 2022-1-13
• Date: 2022

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References; Tables;
• Pagination: 15p

Subject/Index Terms

• TRT Terms: Accelerated tests; Concrete pavements; Optical fibers; Prototypes; Sensors; Signal processing; Vibration
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 01832361
• Record Type: Publication
• Report/Paper Numbers: TRBAM-22-04783
• Files: TRIS, TRB, ATRI
• Created Date: Jan 11 2022 1:37PM