Numerical simulation on skid resistance property of wet asphalt pavement(PDF)
长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]
- Issue:
- 2016年03期
- Page:
- 25-32
- Research Field:
- 道路工程
- Publishing date:
Info
- Title:
- Numerical simulation on skid resistance property of wet asphalt pavement
- Author(s):
- YANG Jun; WANG Hao-peng; WU Qi
- (1. School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China; 2. Guangdong Province Communications Planning and Designing Insititute Co. Ltd., Guangzhou 510000, Guangdong, China)
- Keywords:
- road engineering; asphalt pavement; anti-skid property; adhesion coefficient; finite element simulation
- PACS:
- U414
- DOI:
- -
- Abstract:
- In order to simulate and evaluate the skid resistance property of wet asphalt pavement, IFS interpolation method was used to build a 3D asphalt pavement surface texture model in MATLAB. The 3D asphalt pavement surface model was then imported into FEM software (ABAQUS).The contact model between the tire and pavement surface was constructed thereafter. The results on the acting force of water film on the tire from FLUENT were also imported into ABAQUS to characterize the influence of the water film. Based on the above efforts, the final model, which simulates high speed tire upon wet pavement surface, was established. The adhesion coefficient was set as anti-skid index to evaluate skid resistance property of asphalt pavement under synthetic action among vehicles, roads and environment. The results show that the adhesion coefficient between tires and pavement surface decreases with the increase of driving speed, while it increases with the increase of traffic loading and the decrease of tire pressure, and decreases with the increase of water membrane thickness. Adhesion coefficient changes rapidly with vehicle speed when water membrane thickness is relatively thin. Thickness of water membrane affects the adhesion coefficient substantially in a low driving speed, and adhesion coefficient increases with the increase of texture depth. However, when the texture depth reaches a critical value, additional texture depth will bring negative impact instead of enhancing the anti-skid performance.
Last Update: 2016-06-12