原文传递
Implementing the Mechanistic-Empirical Design Guide Procedure for a Hot-Mix Asphalt-Rehabilitated Pavement in Indiana.
| 题名： | Implementing the Mechanistic-Empirical Design Guide Procedure for a Hot-Mix Asphalt-Rehabilitated Pavement in Indiana. |
| 作者： | Galal-Khaled-A; Chehab-Ghassan-R |
| 关键词： | Analysis-of-variance; Asphalt-concrete-pavements; Contact-stress; Elastic-layer-analysis; Pavement-layers; Rolling-contact; Statistical-analysis; Stresses-; Tensile-strains; Tire-pressure; Trucks-; Ve |
| 摘要： | Truck tire inflation pressure plays an important role in the tire-pavement interaction process. As a conventional approximation method in many pavement studies, tire-pavement contact stress is frequently assumed to be uniformly distributed over a circular contact area and to be simply equal to the tire pressure. However, recent studies have demonstrated that the tire-pavement contact stress is far from uniformly distributed. Measured tire-pavement contact stress data were input into an elastic multilayer pavement analysis program to compute pavement immediate responses. Two asphalt concrete pavement structures, a thick pavement and a thin pavement, were investigated. Major pavement responses at locations in the pavement structures were computed with the measured tire-pavement contact stress data and were compared with the conventional method. The computation results showed that the conventional method tends to underestimate pavement responses at low tire pressures and to overestimate pavement responses at high tire pressures. A two-way analysis of variance model was used to compare the pavement responses to identify the effects of truck tire pressure on immediate pavement responses. Statistical analysis found that tire pressure was significantly related to tensile strains at the bottom of the asphalt concrete layer and stresses near the pavement surface for both the thick and thin pavement structures. However, tire pressure effects on vertical strain at the top of the subgrade were minor, especially in the thick pavement. |
| 总页数： | Transportation Research Record: Journal of the Transportation Research Board. 2005. (1919) pp111-120 (2 Phot., 3 Fig., 3 Tab., 26 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Bituminous Paving Mixtures, 2005. Transportation research record.
- Laboratory Validation of an Endurance Limit for Asphalt Pavements.
- Ruggedness Testing of the Dynamic Modulus and Flow Number Tests with the Simple Performance Tester National Cooperative Highway Research Program.
- Ruggedness Testing of the Dynamic Modulus and Flow Number Tests with the Simple Performance Tester National Cooperative Highway Research Program
- Pavement Design and Accelerated Testing, 2004. Transportation research record.
- User's Guide: Hot-Mix Recycling of Asphalt Concrete Pavements; Final rept
检索历史
应用推荐
