Developing Scour-Depth Estimation Using the In Situ and Portable Scour Testing Devices (ISTD and PSTD) for Illinois Cohesive Soils

More than 60% of bridge failures in the United States are due to scouring and only 2% of the failures are caused by earthquakes. Many studies have been done on bridge scour predictions during the past decades. Most of the studies prior to 1999 were performed on non-cohesive materials. The most common prediction methods were proposed by HEC−18 and were later modified by Arneson et al. in 2012 (HEC 18 2012 version) to address scour calculations in cohesive material. FHWA in recent years developed the Insitu Scour Testing Device (ISTD) and Portable Scour Testing Device (PSTD) to extract better load versus erosion characteristics of the riverbed material. The objective of this research is to establish testing and hydraulic-analysis procedures with ISTD/PSTD data and to improve reliability of the estimated scour depths in cohesive soils to design bridges more cost-effectively. To meet this objective, the researchers will complete the following step: conduct a literature review, perform field testing and collect samples, develop a procedure, and publish a final report.

Language

• English

Project

• Status: Active
• Funding: $462500
• Contract Numbers:

  R27-220

• Sponsor Organizations:

  Illinois Department of Transportation

  Bureau of Materials and Physical Research
  126 East Ash Street
  Springfield, IL  United States  62704-4766
• Managing Organizations:

  University of Illinois, Urbana-Champaign

  Illinois Center for Transportation
  1611 Titan Drive
  Rantoul, IL  United States  61866
• Principal Investigators:

  Huizinga, Richard

  Rydlund, Paul

  Stark, Timothy

  Straub, Tim

  Vaughn, Brent

  Osouli, Abdolreza

• Start Date: 20201001
• Expected Completion Date: 20250930
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Bridge design; Cohesive soils; Hydraulics; Scour; Test procedures
• Geographic Terms: Illinois
• Subject Areas: Bridges and other structures; Geotechnology; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 01752474
• Record Type: Research project
• Source Agency: Illinois Department of Transportation
• Contract Numbers: R27-220
• Files: RIP, STATEDOT
• Created Date: Sep 21 2020 12:04PM