RELATION BETWEEN TRAFFIC-GENERATED VIBRATIONS, THEIR FREQUENCY, PARTICLE MOTION DISPLACEMENT, VELOCITY AND SPEED OF TRUCK

The behaviour of the road-surface under conditions of dynamic loading (passing vehicle) is studied with the help of a vertical-component seismometer located under the surface of the road and a three-component seismometer at surface level. The main conclusions can be summarized as follows: 1. Rayleigh wave types propagating through the road dominate when vehicles approach velocities of 35-40 km/h. At lower velocities the wave type is a flexural one. 2. Pulse frequencies recorded by the buried seismometer are linearly dependent on vehicle velocities. Frequencies of road vibrations recorded at the surface seem to be dependent only on the natural frequency of the road and the underlying materials. 3. Particle-motion velocity recorded by the buried seismometer seems to be non-linearly dependent on vehicle velocities. The seismometer at road level shows linear dependence. 4. The shape of the pulse is dependent on the damping coefficient of the surface of the road, and its restoring force. 5. Rayleigh wave amplitude, generated in macadam is dependent upon layer thickness. Increasing layer thicknesses seem to have properties similar to low-pass filters. See also IRRD abstract no. 214777. /TRRL/

  • Corporate Authors:

    Swedish Geotechnical Institute

    Banergaten 16
    S-115-26 Stockholm,   Sweden 

    Statens Geotekniska Institute

    Banergatan 16
    S-115 26 Stockholm,   Sweden 
  • Authors:
    • Lande, Y
  • Publication Date: 1974

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00127772
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS
  • Created Date: May 14 1976 12:00AM