In-service Assessment of Road Sinkholes with 2D Ambient Noise Tomography

The main objective of this project is to develop a 2D Ambient Noise Tomography (ANT) method using traffic noises for detection of pre-collapsed sinkholes (buried voids) beneath roadways. It is expected that the ANT method developed through this project will provide 2D profiles of P-wave and S-wave velocities of substructures at feet-scales (3-5 ft cells) to 100-ft depth. The P-wave and S-wave velocity profiles will be used to infer the information of the voids including depths, sizes, and filled materials (air, water, raveled soils). The ANT algorithm will be incorporated into the available GUI software of the 2D FWI, and transferred to Florida Department of Transportation (FDOT) for future sinkhole investigations.

Project

• Status: Active
• Funding: $200000
• Contract Numbers:

  BDV31 977-122

• Sponsor Organizations:

  Florida Department of Transportation

  Research Center
  605 Suwannee Street MS-30
  Tallahassee, FL  United States  32399-0450
• Project Managers:

  Horhota, David

• Performing Organizations:

  Southeastern Transportation Research, Innovation, Development and Education Center (STRIDE)

  University of Florida
  365 Weil Hall
  Gainesville, FL  United States  32611
• Principal Investigators:

  Tran, Khiem

• Start Date: 20191014
• Expected Completion Date: 20211130
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Air voids; Algorithms; Evaluation and assessment; Methodology; Sinkholes; Tomography; Traffic noise
• Identifier Terms: Florida Department of Transportation
• Subject Areas: Geotechnology; Highways; Planning and Forecasting; Safety and Human Factors;

Filing Info

• Accession Number: 01719329
• Record Type: Research project
• Source Agency: Florida Department of Transportation
• Contract Numbers: BDV31 977-122
• Files: RIP, STATEDOT
• Created Date: Oct 15 2019 10:20AM