原文传递
RUNOFF CONTROL IN POROUS PAVEMENTS.
| 题名： | RUNOFF CONTROL IN POROUS PAVEMENTS. |
| 作者： | Ranieri-V |
| 关键词： | Depth-; Design-charts; Geometric-design; Laboratory-tests; Mathematical-models; Open-graded-friction-course; Pavement-design; Pavements-; Permeability-coefficient; Rainfall-; Rainfall-intensity; Runoff-; Surface-course-Pavements; Thickness-; Water-table |
| 摘要： | A runoff model from porous pavements is presented that links the hydraulic conductivity of porous pavement with the geometric characteristics of the road section and rainfall intensity. The theoretical model has been tested in the laboratory with an original device that simulates rainfall on porous pavements and, at the same time, measures the depth of water over the impervious layer during the seepage motion. Based on the experimental data, a useful chart for porous pavement design is also presented. For every inclination (i) of the impervious layer, the graph provides the value of the nondimensional ratio Hmax/L between the maximum depth (Hmax) of the water table over the impervious layer and the length (L) of the seepage path, in the function of the nondimensional ratio 4I/k between rainfall intensity (I) and permeability (k). Data provided with this graph could improve porous pavement design (e.g., to assess the minimum thickness of an open-graded friction course needed to avoid surface runoff) usually based only on mechanical resistance determinations. If the chart is not used, to ensure the best flow conditions, the relation i squared > 4I/k should be always verified. |
| 总页数： | Transportation Research Record. 2002. (1789) pp46-55 (1 Phot., 8 Fig., 4 Tab., 28 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Development of a Specification for Porous Asphalt Pavements.
- PERFORMANCE FACTORS AND QUALITY CONTROL/QUALITY ASSURANCE FOR POROUS PAVEMENTS.
- DESIGN, CONSTRUCTION, AND MAINTENANCE GUIDELINES FOR POROUS ASPHALT PAVEMENTS.
- STATE-OF-THE-ART PREDICTION AND CONTROL OF ROAD TRAFFIC NOISE IN FRANCE.
- Acoustic Aging of Asphalt Pavements: A Californian/Danish Comparison.
- PAVEMENT CONDITION RATING SYSTEM REVIEW OF PCR METHODOLOGY
检索历史
应用推荐
