Vibratory compaction is a new technique. In earthworks and in pavement construction, the use of vibratory rollers has become more widespread in recent years. In general, compaction is not a simple affair, notably because the theory does not manage to go beyond the domain of elasticity. At the present time it is impossible to describe what happens in the material, apart from the fact that there is intergranular sliding friction and rolling friction. In any case, it is only stresses which, at a point, can cause intergranular displacements. And because the stresses in the soil are proportional to the forces applied at the surface, the theory developed here considers the instantaneous resultant of the forces at the roller/soil interface. The "total applied force" is the sum of a static term (the weight of the roller) and a dynamic term, her called the vibrogenic force. The calculations are performed with the aid of mathematical models with one or two degrees of freedom, representing the vibrating mass and the suspended mass or masses of the compactor. The disengagement of the roller is then seen as the simple consequence of the cancelling out of the total applied force. A number of results are compared with experimental results, on the basis of measurements of stresses developed in the roller of a vibratory compactor and pressures induced in the material at different depths.

  • Corporate Authors:

    Central Laboratory of Bridges & Highways, France

    75732 Paris,   France 
  • Authors:
    • MacHet, J M
  • Publication Date: 1976-9


  • French

Media Info

  • Features: Figures; Photos; References;
  • Pagination: 96 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00148388
  • Record Type: Publication
  • Report/Paper Numbers: Report No. 59
  • Files: TRIS
  • Created Date: Mar 30 1977 12:00AM