The Study on Portable Falling Weight Deflectometer Based on the Elastic Half-Space Theory

Abstract:

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As a quick, accurate and efficient inspecting equipment, the Portable Falling Weight Deflectometer (PFWD) is widely used in subgrade modulus evaluation in the foreign countries. However, most analysis methods used in the modulus back calculation of PFWD is based on the classical Boussinesq solution or empirical formulas, which could hardly reflect the resilient of subgrade accurately. In this paper, the elastic half-space theory is introduced into the analysis of modulus back calculation, and with the integral transform and the numerical analysis, this paper provides an approximate method to evaluate the elastic modulus of subgrade.

Info:

Periodical:

Edited by:

Shucai Li

Pages:

156-161

DOI:

10.4028/www.scientific.net/AMM.97-98.156

Citation:

D. C. Feng et al., "The Study on Portable Falling Weight Deflectometer Based on the Elastic Half-Space Theory", Applied Mechanics and Materials, Vols. 97-98, pp. 156-161, 2011

Online since:

September 2011

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Price:

$35.00

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