Subgrade Repair and Stabilization Using In-Situ Vitrification, Phase II: Final Report

Details

• Creators:
  O'Hair, Edgar A. ; Jayawickrama, Priyantha W. ; Dickens, James C. ; Hossain, M Shabbir
• Corporate Creators:
  Texas Tech University. Dept. of Civil Engineering
• Corporate Contributors:
  Texas Department of Transportation. Research and Technology Implementation Office ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Equipment Field Tests Repairing Soil Stabilization Subgrade (Pavements) Vitrified Clay
• Publication/ Report Number:
  FHW NTX /03/0-1860-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Edition:
  Final Report
• Corporate Publisher:
  Texas Tech University. College of Engineering
• Abstract:
  Phase I of this research study demonstrated the feasibility of using Concentric Graphite Arc Melter (CGAM) vitrification technology for stabilizing weak sub grade soils. In Phase I, soil vitrification was achieved in the laboratory environment using the main power supply. The primary goal of the Phase II study, described in the report, was to develop a mobile, trailer mounted soil vitrification (SOVIT) system and its demonstration in the field. There are three major subsystems in mobile SOVIT. The first subsystem, the CGAM, was developed by MONTEC Associates in Butte, Montana. The second, Power Conditioning Unit (PCU) was developed by Texas Tech University. The third part is the 2-axle trailer that was bought locally in Lubbock, Texas. After successful check out of SOVIT system, its' functionality and operation were demonstrated at two selected sites in Lubbock and Dimmitt, TX. In Lubbock, the mobile SOVIT system was able to vitrify soil at 4 feet below the ground. It operated at one third of its intended design power. Next, SOVIT system was used at the TxDOT maintenance facility in Dimmitt to vitrify subgrade/subbase soils. Based on the findings from a pre and post-vitrification evaluation at Dimmitt, it was concluded that SOVIT technology is best suited for soil slope stabilization purposes.
• Format:
  PDF
• Funding:
  0-1860
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:e18b2953bbedbc22652beacb672288806847c120ec7daa98b24629aa78fa1b2aad03f5c740e020a6cbe12b1ad8ea4428f03c41cfdfdb45ac99a6ad47cce278df
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/86386/dot_86386_DS1.pdf
• File Type:
  [PDF - 2.52 MB ]