Evaluation of Hydraulic Plate Compactor

The objective of this project is to assess the capability of the vibratory hydraulic plate compactor for aggregate compaction in utility trench backfill. Specifically, the project aims to investigate: (1) the maximum lift thickness to consistently achieve the minimum specified Standard Proctor Density (SPD) of trench backfill in the cover zone as per Pub 408 (2011.5), Section 206.3(b)1, (2) the effect of lift thickness on compaction-induced downward earth pressure in the backfill zone, and (3) the effect of lift thickness on compaction-induced axial and hoop strains in typical pipes. To achieve the research objective, two (2) parallel field investigations will be performed at the following sites: State College site: Test track facility, The Larson Transportation Institute, Penn State Univ. Harrisburg site: Lower Paxton Township Public Works Facility, 5975 Locust Lane, Harrisburg, PA 17109. The purpose of the field investigation at the State College site is to establish baseline measurements using a walk-behind vibratory roller compactor in accordance with current PennDOT specifications in Publication 408/2011. These baseline measurements will be compared to measurements from the field investigation at the Harrisburg site using a hydraulic plate compactor.


    • English


    • Status: Active
    • Contract Numbers:



    • Sponsor Organizations:

      Research and Innovative Technology Administration

      University Transportation Centers Program
      1200 New Jersey Avenue
      Washington, DC  United States  20590

      Pennsylvania Department of Transportation

      Planning and Research, 400 North Street
      6th Floor
      Harrisburg, PA  United States  17120
    • Performing Organizations:

      Pennsylvania State University, University Park

      Thomas D. Larson Pennsylvania Transportation Institute
      Research Office Building
      University Park, PA  United States  16802-4710
    • Principal Investigators:

      Qui, Tong

    • Start Date: 20140826
    • Expected Completion Date: 0
    • Actual Completion Date: 20141126
    • Source Data: RiP Project 37133

    Subject/Index Terms

    Filing Info

    • Accession Number: 01537402
    • Record Type: Research project
    • Source Agency: Mid-Atlantic Universities Transportation Center
    • Contract Numbers: DTRT02-G-UTC03, PSU-2014-05
    • Files: UTC, RiP
    • Created Date: Sep 13 2014 1:01AM