Evaluation of 2D Hydraulics Models to Improve Scour Predictions and Countermeasures

Despite major advances in predicting the spatial and temporal scales of scour at bridge crossings, bridge failure due to hydraulically induced scour still represents a major technical, economical, and societal challenge. To address this challenge, the proposed research will pursue the following specific objectives: (1) identify the key capabilities and limitations of the 2D depth-averaged numerical models when simulating scour phenomena at bridge foundations; (2) compare the performance of 1D numerical models to that of 2D numerical models when simulating scour phenomena at bridge foundations; and (3) develop recommendations for predicting scour depths and for evaluating scour mitigation countermeasures at bridge foundations using 2D numerical models. Results from the proposed research will primarily contribute to achieve better predictions of the scour phenomena at bridge foundations, as well as to enhance the design of countermeasures for scour mitigation. Additionally, through the deployment of a novel fiber-optic scour monitoring station, this research will provide new insights on the dynamic development of the scour hole using field data. Such information will effectively enhance the development, and thereby the predictive capabilities of numerical models when use to examine the impact of unknown or extreme hydrologic events.

    Project

    • Status: Active
    • Funding: $254919
    • Sponsor Organizations:

      North Carolina Department of Transportation

      Research and Development
      1549 Mail Service Center
      Raleigh, NC  United States  27699-1549
    • Managing Organizations:

      North Carolina Department of Transportation

      Research and Development
      1549 Mail Service Center
      Raleigh, NC  United States  27699-1549
    • Project Managers:

      Kirby, John

    • Performing Organizations:

      North Carolina State University, Raleigh

      Department of Biological and Agricultural Engineering
      Box 7625
      Raleigh, NC  United States  27695
    • Principal Investigators:

      Castro-Bolinaga, Celso

    • Start Date: 20190801
    • Expected Completion Date: 20210731
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01716020
    • Record Type: Research project
    • Source Agency: North Carolina Department of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Sep 12 2019 2:21PM