STUDY OF VIBRATORY COMPACTION

ETUDE SUR LE COMPACTAGE PAR VIBRATION

The technique of vibratory compaction is a new one. The use of vibrating rollers has increased considerably in recent years, both in the field of earthworks and in that of pavement construction. The theory developed here considers the instantaneous equilibrium of forces at the interface between the roller and the soil. The "total force applied" by the vibrating roller to the soil is the sum of one term, the weight of the roller, and another dynamic term, the "vibrogene" force in order to establish a distinction between the concept of centrifugal force and the inertia force. This force depends not only on the vibration characteristics of the roller, the frequency, the eccentric moment, the mass of the roller, etc, but also on the characteristics of the soil. For a roller without a suspended mass, the "vibrogene" is the vector sum of the centrifugal force and the inertia force, the amplitude depending on the vibrator. For a roller with a suspended mass, it is necessary to add, vectorially, the forces transmitted by the combination of the roller and the chassis. The separation of the roller is envisaged as the simple result of the total applied force. The results obtained are compared with experience gained from the measurement of the stresses developed in the roller of a vibrating roller. /TRRL/

  • Corporate Authors:

    Laboratoire Central des Ponts et Chausees (LCPC)

    Boulevard Lefebvre 58
    Paris Cedex 15,   France  F-75732
  • Authors:
    • MacHet, J M
  • Publication Date: 1977-1-2

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00174157
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: Analytic
  • Files: ITRD, TRIS
  • Created Date: Jun 28 1978 12:00AM