Address Knowledge Gaps in Scour Analyses for Cohesive and Other Challenging Channel Materials
The research team will address two gaps in scour knowledge: pressure scour for cohesive soils and cohesive soils/rocks characterization for scour analyses. Pressure scour occurs when the water reaches the bridge's low chord; this increases the scour depth. Guidelines exist for cohesionless soils but not for cohesive soils. The research team will perform a series of Computational Fluid Dynamics (CFD) simulations and/or flume tests to generate the input necessary and expand the SRICOS method to the pressure flow situation in cohesive soils. The research team will perform advanced testing on cohesive soils/rocks characterization for scour analyses. Advanced testing examples include the Erosion Function Apparatus (EFA) (research team) and Scour Testing devices (Federal Highway Administration (FHWA)). The research team will determine if the Slake Durability Test (SDT) can be a reasonable surrogate for input in scour depth calculations by collecting samples at a maximum of up to 20 bridges around Texas, and by conducting parallel testing on cohesive soils/rocks such as shale, caliche, and sandstone.
Language
- English
Project
- Status: Active
- Funding: $481680
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Contract Numbers:
0-7234
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Sponsor Organizations:
Texas Department of Transportation
125 E. 11th Street
Austin, TX United States 78701-2483 -
Project Managers:
Kasberg, Katelyn
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Performing Organizations:
Texas A&M Transportation Institute
Texas A&M University System
3135 TAMU
College Station, TX United States 77843-3135 -
Principal Investigators:
Briaud, Jean-Louis
- Start Date: 20240901
- Expected Completion Date: 20260831
- Actual Completion Date: 0
Subject/Index Terms
- TRT Terms: Bridges; Cohesive soils; Fluid dynamics; Rocks; Scour
- Geographic Terms: Texas
- Subject Areas: Bridges and other structures; Geotechnology; Highways; Hydraulics and Hydrology;
Filing Info
- Accession Number: 01928229
- Record Type: Research project
- Source Agency: Texas Department of Transportation
- Contract Numbers: 0-7234
- Files: RIP, STATEDOT
- Created Date: Aug 22 2024 5:01PM