"OVALIZATION": A NEW METHOD OF MEASURING ELASTIC DEFORMATIONS IN PAVEMENTS

L'OVALISATION : UNE NOUVELLE METHODE DE MESURE DES DEFORMATIONS ELASTIQUES DES CHAUSSEES

Stresses or deformations at the base of stabilized layers constitute a good criterion for characterizing the behavior of pavement layers in bending. For a long time strain gauges were the only method of determining the value of this parameter. The process described in this article consists in measuring the variations in the diameter of a cylindrical cavity (ovalization of a bore hole) under a heavy moving load. Indications are given on how to carry out measurements in a cavity and how the results obtained can be translated in terms of deformations (or stresses) in stabilized layers. An example is given, in which ovalization measurements are compared to results obtained with strain gauges. (TRRL)

• Corporate Authors:

  Laboratoire Central des Ponts et Chausees (LCPC)

  Boulevard Lefebvre 58
  Paris Cedex 15,   France  F-75732
• Authors:
  • Kobisch, R
  • Peyronne, C
• Publication Date: 1979-7-8

Language

• French

Media Info

• Features: Figures; Photos; Tables;
• Pagination: p. 59-71
• Serial:
  • Bulletin de Liaison des Lab des Ponts et Chaussees
  • Issue Number: 102
  • Publisher: Laboratoire Central des Ponts et Chausees (LCPC)

Subject/Index Terms

• TRT Terms: Alternatives analysis; Base course (Pavements); Boreholes; Deformation; Diameter; Elastic deformation; Elasticity (Mechanics); Live loads; Loads; Measurement; Motion; Moving industry; Pavement layers; Pavements; Radius; Soil stabilization; Stabilized materials; Strain gages; Stresses; Test procedures; Variables
• Old TRIS Terms: Variations
• ITRD Terms: 5711: Bore hole; 5595: Deformation; 5912: Elasticity; 5567: Load; 9050: Moving; 2955: Pavement; 6402: Radius; 3688: Roadbase stabilization; 6288: Test method
• Subject Areas: Design; Freight Transportation; Geotechnology; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00324819
• Record Type: Publication
• Source Agency: Laboratoire Central des Ponts et Chausees (LCPC)
• Files: ITRD, TRIS
• Created Date: Aug 15 1981 12:00AM