Definition standard method for comprehensively determining anti-slide performance of high friction asphalt road surface

Abstract

The invention discloses a definition standard method for comprehensively determining an anti-slide performance of a high friction bituminous road surface. According to the change curve of the design speed and adhesion coefficient of the safety car distance L<nu> with the high friction asphalt road surface, water skiing speed and water film thickness of vehicle tires, slip ratio of tires, internalpressure of tires, the relationship between the depth of tread pattern and texture depth of the high friction asphalt road surface, a highway classification of the water skiing speed of a car with thehigh friction asphalt road surface, the change curve of the surface structure depth of rainfall intensity and the high friction asphalt road surface, and the variation curve of the anti-slip index ofthe high friction asphalt road surface with the service time, and the definition standard of the anti-slide performance of the high friction asphalt road surface is determined; and the definition standard method for comprehensively determining the anti-slide performance of the high friction bituminous road surface can be used to determine the definition standard of the anti-slide performance of the high friction bituminous road surface.

Description

technical field [0001] The invention relates to a method for comprehensively determining the definition standard of antiskid performance, in particular to a method for comprehensively determining the definition standard for antiskid performance of high-friction asphalt pavement. Background technique [0002] Compared with ordinary asphalt mixture, high-friction asphalt mixture has a remarkable feature of excellent skid resistance, but there are few studies on high-friction asphalt mixture in my country, and how to effectively evaluate the impact of high-friction road on traffic safety There is no in-depth research on the contribution, and there is no relevant strict definition, but the evaluation and classification of the skid resistance performance of the road surface in the "Technical Specifications for Highway Asphalt Pavement Maintenance", as shown in Table 1. It can be seen from Table 1 that the evaluation indexes of the anti-sliding ability of the pavement include the l...

AI Technical Summary

Problems solved by technology

It can be seen from Table 1 that the evaluation indexes of the anti-skid ability of the pavement include the lateral force coefficient and the pendulum value. These two indexes can only represent the anti-skid performance of the road surface at a certain point in time, but cannot evaluate the attenuation of the anti-skid performance.

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