Strength Envelopes for Florida Rock and Intermediate Geomaterials

The objectives of this project are to: (1) acquire and setup a triaxial apparatus at the State Materials Office capable of 1500 psi cell pressure, 40,000 lb. axial capacity with instrumentation to monitor applied stress, strain and pore pressure; (2) collect Florida Limestone and marl samples from multiple surface formations (Miami, Anastasia, Fort Thompson, Suwannee, etc.) that shallow foundation for bridge structures may reside; (3) assist SMO technicians in setting up and performing triaxial compression, extension, unconfined compression and split tension testing of Florida Limestone and marl samples; (4) develop strength envelope, e.g. Eq. 2 for compression and extension for Florida Limestone and marl; (5) develop a stress-strain model including strain softening if necessary and implement into a Finite Element code to model both the homogeneous and 2 layer (rock over sand) bearing capacity problem; and (6) develop bearing capacity equations (e.g. Eq. 1) for both homogeneous and 2 layer (rock over sand) problem for Florida Limestone and marl conditions.

Language

• English

Project

• Status: Completed
• Funding: $363330
• Contract Numbers:

  BDV31 977-51

• Sponsor Organizations:

  Florida Department of Transportation

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

  Florida Department of Transportation

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

  Herrera, Rodrigo

  Horhota, David

• Performing Organizations:

  University of Florida, Gainesville

  Department of Civil and Costal Engineering
  365 Weil Hall, P.O. Box 116580
  Gainesville, FL  United States  32611
• Principal Investigators:

  McVay, Michael

  Song, Xiaoyu

• Start Date: 20160125
• Expected Completion Date: 20190601
• Actual Completion Date: 20190524

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridge substructures; Compressive strength; Finite element method; Foundations; Geotechnical engineering; Limestone; Marl; Pore pressure; Rocks
• Geographic Terms: Florida
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 01589879
• Record Type: Research project
• Source Agency: Florida Department of Transportation
• Contract Numbers: BDV31 977-51
• Files: RIP, STATEDOT
• Created Date: Feb 5 2016 4:55PM