THEORETICAL ANALYSIS OF FALLING WEIGHT DEFLECTOMETER MEASUREMENTS AND THEIR INTERPRETATION

The analysis of the FWD is based on mathematical and physical interpretations. A rolling wheel is modelled on a viscoelastic halfspace; result: a simulation by means of an elastostatic model is not possible. A haversine load pulse on the viscoelastic halfspace and after that on a two-layer halfspace, first layer with viscoelastic and second layer with elastic properties, is analyzed, without taking inertia and damping effects into account; result: determination of modulus E and the determination of any response is possible by means of an elastostatic model. A sinusoidal load is analyzed in order to get information about inertia and damping effects; result: inertia and damping effects have only a very low influence on the FWD-deflections, and the wave dispersion show negligible effects. (A) For the covering abstract of the conference see IRRD 873950.

Language

  • English

Media Info

  • Features: References;
  • Pagination: IV74-IV90

Subject/Index Terms

Filing Info

  • Accession Number: 00714413
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Dec 27 1995 12:00AM