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Development of Field Data for Effective Implementation of Mechanistic Empirical Pavement Design Procedure.
| 题名： | Development of Field Data for Effective Implementation of Mechanistic Empirical Pavement Design Procedure. |
| 作者： | Ala-N.; Stanigzai-M.A.; Azizinamini-A. |
| 关键词： | *Field-data; *Pavements-.;Data-collection; Implementation-; Procedure-calibration; Nebraska-; Highway-pavements; Design-procedures; Pavement-structure; Response-models; Parametrics-; Sensitivity-analyses; Performance-criteria; Field-instrumentation; Recommendations-; Assessments-; Merits-. |
| 摘要： | This report provides summary of the work that was carried out to assess the merits of the Mechanistic Empirical Pavement Design approach and attempts to calibrate the procedure for application in Nebraska. Mechanistic Empirical (M-E) design of pavements is a new approach to pavement design. The method consists of two components; Mechanistic and Empirical. The Mechanistic part of the procedure tries to predict the response of the pavement to various loading during a very short time period. The empirical part tries to sum up the damages inflected to the pavement during the short time steps that the pavement is subjected to and attempts to predict the accumulated damage as function of time. This project consisted of two parts. First a parametric study was carried out to identify the parameters that are important and level of sophistication that is needed at the input level. Appendix A provides summary of this effort in detail. It was concluded that there is a need for collecting field data, before making a final conclusion on effectiveness of the new methodology for application in Nebraska. The next step was to develop filed instrumentation plan and start collecting data and then continue with calibration process. The computer program that is used in conjunction with MEPDG program and the theoretical background to it published in several reports, were carefully reviewed and a approach for field instrumentation was developed. |
| 报告类型： | 科技报告 |
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