STUDY ON STRUCTURAL EVALUATION OF PAVEMENT LAYER MODULI OBTAINED BY BACKCALCULATING FWD DEFLECTION DATA
نویسندگان
چکیده
منابع مشابه
Evaluation of the Pavement Structural Condition at Network Level Using Falling Weight Deflectometer (fwd) Data
Large amounts of seal coats and thin overlays are applied every year by state highway agencies to improve the surface condition of pavements, but these measures have not successfully prevented the problem from reoccurring. As a result, the overall pavement condition keeps deteriorating because of the structural deformation of pavement layers and the subgrade. To make effective decisions about t...
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The Falling weight deflectometer test (FWD) is a commonly used method for the evaluation of the structural performance of pavement systems. In the FWD test, a large weight is raised off the ground and dropped onto a rubber loading pad creating an impulse load representative of the real loading imposed by heavy traffic on the pavement. The excitation produced by the loading sets off waves in the...
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Pavement deflection data are often used to evaluate a pavement’s structural condition non-destructively. It is essential not only to evaluate the structural integrity of an existing pavement but also to have accurate information on pavement surface condition in order to establish a reasonable pavement rehabilitation design system. Pavement layers are characterized by their elastic moduli estima...
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Evaluation of the FWD Moduli of a Flexible Pavement Using Finite Element Model
This study evaluates the back calculation of stiffness of a pavement section on Interstate 40 (I-40)in New Mexico through numerical analysis. Falling Weight Deflectometer (FWD) test has been conducted on a section on I-40. Layer stiffness of the pavement has been backcalculated by a backcalculation software, ELMOD, using the FWD test data. Commercial finite element software, ABAQUS, has been us...
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ژورنال
عنوان ژورنال: JOURNAL OF PAVEMENT ENGINEERING, JSCE
سال: 2007
ISSN: 1884-8176
DOI: 10.2208/journalpe.12.31