DETERMINATION OF PLASTIC DEFORMATIONS IN ROAD PAVEMENTS

A simple but precise surveying technique is described for the determination of three-dimensional plastic deformations in road pavements. The positions of a number of nodal points, placed in the upper layer of a road pavement, are calculated from distance and height difference measurements between adjacent nodal points. A least squares adjustment of the data from repeated surveys yields the vector of the plastic deformation at each nodal point, and subsequently the precision of the deformation measurement can be estimated. The theory of this surveying technique is developed and its practical application to the monitoring of a road pavement is described. The point precision is estimated with a standard deviation of less than + or - 1.2mm, when a steel tape and level with a parallel plate attachment is used for the measurement. The directional deformations monitored are discussed in relation to current pavement design practice. /Author/TRRL/

  • Supplemental Notes:
    • From the Third International Conference of Applications of Statistics and Probability in Soil and Structural Engineering.
  • Corporate Authors:

    University of Sydney

    School of Civil Engineering, Parramatta Road
    Sydney, New South Wales  Australia  2006
  • Authors:
    • LAWSON, C R
    • Brunner, F K
  • Publication Date: 1979

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00300292
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • Report/Paper Numbers: Conf Paper
  • Files: ITRD, TRIS, ATRI
  • Created Date: Oct 17 1979 12:00AM