OPTIMAL OPERATING FREQUENCY OF DYNAMIC COMPACTORS IN SOIL COMPACTING

DIE OPTIMALE ARBEITSFREQUENZ DYNAMISCHER VERDICHTUNGSGERAETE BEI DER BODENVERDICHTUNG

The author reviews the reported work on the fundamental resonance theory and suggests a method that can be used to accurately determine the operating frequency. Simple laboratory or field measurements can be used to determine this frequency. Fundamental research shows that no single parameter by itself can be taken as a means of achieving maximum compaction. No mathematical solution is available at present because there are no equations of motion for the movement of compactions and general particles. The author describes research to determine the effect of frequency on the dynamic force and the condition of soil mechanics under the effect of compaction. Experiments using a large shear-box are described leading to the derivation of an expression relating the compaction effect with the operating frequency, the stiffness of the ground and the angle of friction. The optimum frequency can thus be obvious from simple measurements of input force and a knowledge of the mechanical characteristics of the soil. (TRRL)

  • Corporate Authors:

    Transport and Road Research Laboratory (TRRL)

    Wokingham, Berkshire  United Kingdom 
  • Authors:
    • Godecke, H-J
  • Publication Date: 1980-4

Media Info

  • Features: Figures; References;
  • Pagination: 14 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331824
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: Trans No. 2856 Monograph
  • Files: ITRD, TRIS
  • Created Date: Aug 15 1981 12:00AM