RELIABILITY ANALYSIS OF BACK-CALCULATION OF ROAD PAVEMENTS ELASTIC PARAMETERS
Abstract
With the adoption of GOST R 59918-2021, the assessment of the strength of multilayer pavement should be accompanied by the calculation of the elastic moduli of individual layers. The source of information for solving this problem is the cup of deflection of the pavement surface, determined experimentally using a dynamic loading facility. The method for determining the elastic moduli of the layers along the deflection bowl is regulated by the specified standard and is based on solving the inverse problem of the theory of elasticity for a multilayer half-space using the apparatus of integral transformations. Due to the difference in the properties of a real road structure from the properties of its mathematical model, the experimentally measured bowl of deflections may have small distortions. In this work, the sources of such distortions are analyzed and the probabilities of reliable determination of layer-by-layer elastic moduli are estimated in the course of solving the inverse problem.
References
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Review
Рецензент: А.И. Землянухин, д-р физ.-мат. наук, проф., Саратовский государственный технический университет имени Гагарина Ю.А.
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