A road surface anti-skid texture detector

Abstract

The invention discloses an anti-sliding texture detector for a highway surface. The detector comprises a box body, a traction apparatus, a traction hook, a shock absorber, detection components, a processor, a flat-panel display, a front guide wheel and a rear axle system, wherein the traction apparatus of the detector is hinged with the box body; the traction hook can be installed according to the traction requirements; the bottom of the box body of the detector is provided with the front guide wheel and the rear axle system; the rear axle system can be divided into a dual-wheel system and a multi-wheel system according to the quantity of the detection components. Vibration response generated by rigid universal rolling wheels of the detection components during rolling on the road surface is received by an electric vibration sensor which is connected with the detection components via bolts, and is transmitted to the processor through a signal line; the processor can convert a vibration spectrum in the vibration signal into a road-surface texture spectrum, calculates and stores the structure depth and structure density parameters; the friction coefficient is calculated by combining with the micro structure depth of coarse aggregate detected by an indoor test. Therefore, the anti-sliding texture detector is convenient to operate, stable in performance and low in construction cost, and a new choice is provided for highway engineering testing personnel.

Description

technical field [0001] The invention belongs to the field of road detection, and relates to a device for detecting anti-skid texture of asphalt concrete pavement. Background technique [0002] In recent years, with the gradual improvement of my country's expressway network, the operation capacity of the road network has been rapidly improved. However, the number of traffic accidents caused by the lack of anti-skid performance of the road surface has also doubled thereupon. Japanese research scholars found that the number of traffic accidents caused by insufficient anti-skid ability of the pavement accounted for 25% of the total number of traffic accidents in Japan; similarly, the results of a sample survey in the United Kingdom showed that such accidents accounted for 24% of the total number of accidents in the whole year. . Although my country has not yet released authoritative survey data, according to the analysis of the technical maturity of various components of my co...

AI Technical Summary

Problems solved by technology

However, there are certain deficiencies: first, human factors have a great influence on the error; second, although the sand spreading method is simple, the test speed is slow and the efficiency is low. For highways with long mileage, only some road sections can be selected for sampling survey, and it cannot Reflect the road condition characteristics of the whole road section; Third, when carrying out the sand-laying method inspection on the road section open to traffic, traffic control must be carried out to ensure the safety of the inspection personnel

As mentioned above, the price of the laser profiler is too expensive, and it is very difficult to popularize and apply it at this stage. How to adopt a practical method to replace the laser test method to read the texture spectrum of the road surface becomes the main problem to be solved by the present invention

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