Improvement for Determining the Axial Capacity of Drilled Shafts in Shale in Illinois

This project is developing state-specific correlations for design of drilled shafts founded in Illinois weak shale. In addition to development/improvement of existing design methods, special attention is being given to improvement of field and laboratory testing methods for characterizing the in situ condition of weak shale in Illinois including shear strength and compressibility. For the purpose of this project, weak shale is defined as Intermediate Geologic Material (IGM) with unconfined compressive strength of 10 ksf to 100 ksf. These improvements are anticipated to lead to safer design and substantial cost savings for the Illinois Department of Transportation (IDOT).


    • English


    • Status: Completed
    • Funding: $172500.00
    • Contract Numbers:


    • Sponsor Organizations:

      Illinois Department of Transportation

      2300 S. Dirksen Parkway
      Springfield, IL  United States  62764
    • Performing Organizations:

      University of Illinois, Urbana-Champaign

      Department of Civil and Environmental Engineering
      205 North Mathews Avenue
      Urbana, IL  United States  61801-2352
    • Principal Investigators:

      Long, James

      Stark, Timothy

    • Start Date: 20111101
    • Expected Completion Date: 0
    • Actual Completion Date: 20130430
    • Source Data: RiP Project 32372

    Subject/Index Terms

    Filing Info

    • Accession Number: 01480006
    • Record Type: Research project
    • Source Agency: Illinois Department of Transportation
    • Contract Numbers: R27-99
    • Files: RiP, STATEDOT
    • Created Date: Apr 27 2013 1:01AM