Dynamic Soil Models for Backcalculation of Material Properties from Falling Weight Deflectometer Deflection Data

Falling Weight Deflectometer (FWD) test is one of the most widely used methods for in-situ nondestructive evaluation of pavement/soil properties and examination of the structural condition of in-service pavements. A dynamic half-space model is employed in the present work for backcalculation of engineering soil properties from the FWD data. The advantages, limitations and the reliability of the backcalculation elastic moduli evaluated from dynamic soil model are discussed in this paper. Selected numerical results are presented to portray the influence of governing parameters, for example, the presence of shallow stiff layer and the mass density of soil material on dynamic backcalculation of the soil elastic modulus. The investigation presented in this study provides a better understanding of dynamic backcalculation processes which is essential for the development of dynamic backcalculation program and its applications.

• Record URL:
  https://doi.org/10.1016/j.proeng.2017.05.025
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S187770581732146X
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/18777058
• Supplemental Notes:
  • © 2017 Hudsadin Sirithepmontree and Yasothorn Sapsathiarn. Published by Elsevier Ltd.
• Authors:
  • Sirithepmontree, Hudsadin
  • Sapsathiarn, Yasothorn
• Publication Date: 2017

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 152-157
• Serial:
  • Procedia Engineering
  • Volume: 189
  • Publisher: Elsevier
  • ISSN: 1877-7058
  • Serial URL: http://www.sciencedirect.com/science/journal/18777058
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Backcalculation; Deflectometers; Falling weight deflectometers; Modulus of elasticity; Properties of materials; Soil mechanics
• Uncontrolled Terms: Soil models
• Subject Areas: Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01638677
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 23 2017 2:03PM