Dynamic analysis of falling weight deflectometer
Falling weight deflectometer (FWD) testing has been used to evaluate structural condition of pavements to predict the layer moduli using backcalculation process. However, the predicted pavement layer moduli sometimes may not be accurate even if computed and measured deflection basin has fulfilled th...
| Main Authors: | , , |
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| Format: | Journal Article |
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Chang'an University
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/52167 |
| _version_ | 1848758862532837376 |
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| author | Nega, Ainalem Nikraz, Hamid Al-Qadi, I. |
| author_facet | Nega, Ainalem Nikraz, Hamid Al-Qadi, I. |
| author_sort | Nega, Ainalem |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Falling weight deflectometer (FWD) testing has been used to evaluate structural condition of pavements to predict the layer moduli using backcalculation process. However, the predicted pavement layer moduli sometimes may not be accurate even if computed and measured deflection basin has fulfilled the standard and is in concurrence with certain tolerable limits. The characteristics of pavement structure, including pavement layer thickness condition and temperature variation, affect the predicted pavement structural capacity and back calculated layer modulus. The main objective of this study is to analyze the FWD test results of flexible pavement in Western Australia to predict the pavement structural capacity. Collected data includes, in addition to FWD measurements, core data and pavement distress surveys. Results showed that the dynamic analysis of falling weight deflectometer test and prediction for the strength of character of flexible pavement layer moduli have been achieved, and algorithms for interpretation of the deflection basin have been improved. The variations of moduli of all layers along the length of sections for majority of the projects are accurate and consistent with measured and computed prediction. However, some of the projects had some inconsistent with modulus values along the length of the sections. Results are reasonable but consideration should be taken to fix varied pavement layers moduli sections. © 2016 Periodical Offices of Chang'an University. |
| first_indexed | 2025-11-14T09:50:44Z |
| format | Journal Article |
| id | curtin-20.500.11937-52167 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:50:44Z |
| publishDate | 2016 |
| publisher | Chang'an University |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-521672017-09-13T15:48:50Z Dynamic analysis of falling weight deflectometer Nega, Ainalem Nikraz, Hamid Al-Qadi, I. Falling weight deflectometer (FWD) testing has been used to evaluate structural condition of pavements to predict the layer moduli using backcalculation process. However, the predicted pavement layer moduli sometimes may not be accurate even if computed and measured deflection basin has fulfilled the standard and is in concurrence with certain tolerable limits. The characteristics of pavement structure, including pavement layer thickness condition and temperature variation, affect the predicted pavement structural capacity and back calculated layer modulus. The main objective of this study is to analyze the FWD test results of flexible pavement in Western Australia to predict the pavement structural capacity. Collected data includes, in addition to FWD measurements, core data and pavement distress surveys. Results showed that the dynamic analysis of falling weight deflectometer test and prediction for the strength of character of flexible pavement layer moduli have been achieved, and algorithms for interpretation of the deflection basin have been improved. The variations of moduli of all layers along the length of sections for majority of the projects are accurate and consistent with measured and computed prediction. However, some of the projects had some inconsistent with modulus values along the length of the sections. Results are reasonable but consideration should be taken to fix varied pavement layers moduli sections. © 2016 Periodical Offices of Chang'an University. 2016 Journal Article http://hdl.handle.net/20.500.11937/52167 10.1016/j.jtte.2016.09.010 http://creativecommons.org/licenses/by-nc-nd/4.0/ Chang'an University fulltext |
| spellingShingle | Nega, Ainalem Nikraz, Hamid Al-Qadi, I. Dynamic analysis of falling weight deflectometer |
| title | Dynamic analysis of falling weight deflectometer |
| title_full | Dynamic analysis of falling weight deflectometer |
| title_fullStr | Dynamic analysis of falling weight deflectometer |
| title_full_unstemmed | Dynamic analysis of falling weight deflectometer |
| title_short | Dynamic analysis of falling weight deflectometer |
| title_sort | dynamic analysis of falling weight deflectometer |
| url | http://hdl.handle.net/20.500.11937/52167 |