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Title: RESPONSE OF PAVEMENT SYSTEMS TO DYNAMIC LOADS IMPOSED BY NONDESTRUCTIVE TESTS
Accession Number: 00715543
Record Type: Component
Availability: Find a library where document is available Abstract: Dynamic nondestructive testing of pavements can be grouped into two categories: (a) deflection basin tests and (b) wave propagation tests. Among the deflection basin tests, the Falling Weight Deflectometer (FWD) test has seen the most widespread use. Of the wave propagation tests, the Spectral Analysis of Surface Waves (SASW) test can be used with or serve as an alternative to deflection basin tests. The theoretical formulation used to analyze the dynamic response of pavement systems to dynamic loads imposed by such nondestructive testing techniques is presented. Analytical studies of the dynamic response of two generalized pavement systems (a flexible one and a rigid one) to the FWD and SASW tests were carried out. The results indicate that dynamic deflection basins due to the FWD load can be substantially different from those obtained under static conditions. The study shows that when complete time histories of FWD deflections are stored, the additional information can provide substantial insight into the properties of the pavement system and can significantly facilitate the inversion process. The dispersion curves obtained with the SASW test are very sensitive to the stiffness of the surface and subgrade layers but, unfortunately, are relatively insensitive to the properties of the base layer. These results are true even when bedrock is present at shallow depths.
Supplemental Notes: This paper appears in Transportation Research Record No. 1504, Modeling and Model Verification; Testing Pavement Layers and Materials; and Low-Cost Drainage Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01399829
Language: English
Authors: Foinquinos, RafaelRoesset, JayStokoe II, Kenneth HPagination: p. 57-67
Publication Date: 1995
Serial: ISBN: 0309061725
Features: Figures
(7)
; References
(19)
; Tables
(1)
TRT Terms: Candidate Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB
Created Date: Jan 2 1996 12:00AM
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