Tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method

Abstract

The invention discloses a tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method. The tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method comprises the following steps: 1. adopting at least two pressure induction films, placing the pressure induction films on a bottom surface of a tested automobile tire and between the tire and different pavements to be tested; 2. contacting the tire of the tested automobile to the pressure induction film in a dead weight manner; 3. taking out the pressure induction film; (4) scanning the pressure induction film to acquire the pressure intensity value of each tested point of each pressure induction film; (5) determining the area M having the pressure intensity value of 0-0.2MPa of the contact surface of each pressure induction film and the tire; (6) calculating P which is equal to M / the area of the contact surface of the pressure induction film and the tire respectively; and (7) comparing all P values and evaluating the pavement skid resistance of all pavements to be tested. According to the method, the pressure induction film is utilized for measuring the pressure distribution of the tire and the pavement, the pavement skid resistance condition can be evaluated and the evaluation result is accurate; and besides, according to the tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method, the cost is low, the use is convenient and the popularization is easy.

Description

technical field [0001] The invention belongs to the technical field of road skid resistance evaluation, and in particular relates to a road surface skid resistance evaluation method based on tire and road surface pressure characteristics. Background technique [0002] With the continuous development of social economy, my country's road construction has made great progress. However, with the improvement of driving conditions and the increase of traffic volume, the speed of vehicles is getting faster and faster, and at the same time, traffic accidents occur frequently. Studies have shown that the frequent occurrence of traffic accidents is directly related to the attenuation of the anti-skid performance of the pavement. Therefore, an accurate evaluation of the anti-skid ability of the road surface can provide a basis for determining the safe driving speed range and formulating road maintenance plans, which can improve driving safety and reduce maintenance costs. [0003] In ...

AI Technical Summary

Problems solved by technology

However, the test results of the above equipment are greatly affected by the test conditions, environment and operation process, and the results have large deviations

Moreover, the cost of instruments and equipment is relatively high, and it is difficult to popularize and apply

[0004] The current pavement anti-skid detection is only limited to the two indicators of test friction coefficient and construction depth, so the above-mentioned defects will inevitably exist

Images