Long Term Monitoring of Moisture under Pavements

Monitoring of the environmental instrumentation installed under select pavement sections constructed by the Ohio Department of Transportation (ODOT) in 1995 on US 23 in Delaware County, Ohio was continued. The measurements made consisted of soil moisture, temperature and frost depth profiles. Ohio State University constructed and installed tensiometers to directly measure the porewater pressures in the subsurface soils at seven locations at the DEL23 SHRP test road (four during original road construction and three more in 2002). Tensiometers were also installed and monitored at seven additional locations within the state. Those devices were monitored throughout the duration of the current project. A laboratory testing program was conducted to identify relationships between static soil properties and the design resilient modulus for compacted cohesive subgrade soils. Resilient modulus as well as classification and strength tests were performed on cohesive soil samples. The program to establish the relationships between dynamic soil behavior and static properties is described and a predictive tool developed through the use of artificial neural networks is presented.

• Record URL:
  http://www.dot.state.oh.us/Divisions/TransSysDev/Research/reportsandplans/Reports/2010/Pavement/134170_FR.pdf
• 
• Summary URL:
  http://www.dot.state.oh.us/Divisions/TransSysDev/Research/reportsandplans/Reports/2009/Pavement/134219_ES.pdf
• Record URL:
  https://rosap.ntl.bts.gov/view/dot/18242
• Corporate Authors:

  Ohio State University, Columbus

  2070 Neil Avenue
  Columbus, OH  United States  43210

  Ohio Department of Transportation

  Office of Research and Development
  1980 West Broad Street
  Columbus, OH  United States  43223

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Wolfe, William E
  • Butalia, Tarunjit S
  • Howdyshell, James R
• Publication Date: 2010-1

Language

• English

Media Info

• Media Type: Web
• Edition: Final Report
• Features: Appendices; Figures; Maps; Photos; References; Tables;
• Pagination: 109p

Subject/Index Terms

• TRT Terms: Cohesive soils; Frost; Laboratory tests; Modulus of resilience; Monitoring; Neural networks; Pore water pressures; Soil water; Subgrade (Pavements); Temperature; Tensiometers
• Uncontrolled Terms: Frost depth; Soil classification; Soil strength
• Geographic Terms: Delaware County (Ohio)
• Subject Areas: Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I42: Soil Mechanics;

Filing Info

• Accession Number: 01156586
• Record Type: Publication
• Report/Paper Numbers: FHWA/OH-2010/1
• Contract Numbers: 134170
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: May 4 2010 4:29PM