Assessment of Innovative Ground Improvement Techniques

As our society continues to expand, land suitable for construction (in its natural state) is becoming increasingly scarce. As a result, many of our projects are situated on sites that would have formerly been considered "unsuitable." Highway structures (retaining walls, bridges, etc.) located on soils with poor support conditions are often placed on deep foundations to transfer the loads to more competent bearing materials. Recently, however, advances in ground modification techniques have produced alternatives which, in many cases, are much more cost-effective. Reinforcement of foundation soils with geosynthetics and in situ densification of foundation soils represent two innovative approaches for cost-effective ground modification. The researchers will conduct a scope of work that is divided into two phases: Phase A and Phase B. Under Phase A, a full-scale field study will be conducted to compare the load-settlement behavior of two abutments placed on shallow foundations: one placed on granular soil reinforced with several layers of geogrid, and the other placed on unreinforced soil on an on-going Massachusetts Highway Department (MassHighway) construction project.. Under Phase B, one or more sites densified via DDC and/or vibrocompaction will be monitored for conditions before, during, and after treatment. Phase B will provide data to assess the relationship between the various compaction parameters and the resulting soil improvement, and to develop correlations between specific test parameters obtained immediately after treatment and improved soil properties attained over time.


    • English


    • Status: Active
    • Sponsor Organizations:

      Massachusetts Executive Office of Transportation

      Office of Transportation Planning, 10 Park Plaza
      Boston, MA  USA  02116
    • Project Managers:

      Pepin, Stephen

    • Performing Organizations:

      University of Massachusetts, Dartmouth

      Department of Civil and Environmental Engineering
      285 Old Westport Road
      North Dartmouth, MA  USA  02747
    • Principal Investigators:

      Miller, Heather

    • Start Date: 20010901
    • Actual Completion Date: 20050630
    • Source Data: RiP Project 9732

    Subject/Index Terms

    Filing Info

    • Accession Number: 01460770
    • Record Type: Research project
    • Source Agency: Massachusetts Executive Office of Transportation
    • Files: RiP, STATEDOT
    • Created Date: Jan 3 2013 1:32PM