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CALIBRATION OF MECHANISTIC-EMPIRICAL RUTTING MODEL FOR IN-SERVICE PAVEMENTS.
| 题名： | CALIBRATION OF MECHANISTIC-EMPIRICAL RUTTING MODEL FOR IN-SERVICE PAVEMENTS. |
| 作者： | Ali-HA; Tayabji-SD; La-Torre-F |
| 关键词： | RUTTING-; FLEXIBLE-PAVEMENTS; PREDICTIONS-; MECHANISTIC-EMPIRICAL-MODELS; TEST-SECTIONS; RUT-DEPTH; CALIBRATIONS-; PLASTIC-DEFORMATION; PAVEMENT-LAYERS; AXLE-LOADS |
| 摘要： | Rutting is a major failure mode for flexible pavements. Pavement engineers have been trying to control and arrest the development of rutting for years. Many models are available to relate pavement rutting to design features, traffic loading, and climatic conditions. These models range from purely empirical to mechanistic models. Mechanistic-empirical models (the Asphalt Institute and Shell) were used to predict the development of rutting for 61 Long-Term Pavement Performance (LTPP) test sections. The rutting damage, calculated using these models, did not appear to be a good predictor of the observed rutting depth. A new rutting model was developed and calibrated using the data from the 61 LTPP sections. The model accounts for the plastic deformation in all pavement layers and allows the use of actual axle load and type, rather than the equivalent single axle load, in characterizing traffic. |
| 总页数： | Transportation Research Record. 1998. (1629) pp159-168 (9 Fig., 1 Tab., 9 Ref.) |
| 报告类型： | 科技报告 |
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