Method for testing curved surface morphology of bituminous pavement

Abstract

The invention discloses a method for testing the curved surface morphology of a bituminous pavement, and the method comprises the following steps: on the basis of taking the testing principle of the conventional vehicle-mounted laser-structured depth telemeter for reference, respectively carrying out variance analysis and distribution fitting test on the test data of the laser-structured depth telemeter by utilizing a mathematical statistical method; determining the distribution patterns and parameters of actually-measured data points; and providing a new method for constructing a curved surface morphology matched with an actually-measured road section by using a method for generating a random number through a computer. According to the invention, the application scope of the existing equipment is expanded; the error caused by accidental factors in the process of actual measurement can be eliminated, and the laboratory test error is minimized; and a three-dimensional curved surface morphology of a bituminous pavement is constructed, thereby providing a basic data support for researching the operational performance of a surface-morphology-based bituminous pavement.

Description

technical field [0001] The invention belongs to the application technical field of asphalt pavement surface performance testing, and in particular relates to a testing method for the surface topography and curved surface of asphalt pavement. Background technique [0002] The pavement should have good performance to meet the needs of safety, economy, comfort and environmental protection. The surface topography of the pavement is the most important characteristic index to determine the tire-pavement interaction, such as friction, noise, water drift, tire wear, etc. With the improvement of highway grade, traffic volume and driving speed, the topographic characteristics of road surface, which are closely related to the interaction between vehicles and road surfaces, are becoming more and more important. [0003] At present, the measurement methods of asphalt pavement surface topography are generally divided into two categories: indirect measurement method and direct measurement...

AI Technical Summary

Problems solved by technology

Other measuring instruments that can directly obtain the three-dimensional shape of the road surface, such as shape detection equipment based on optical imaging, are limited to the research papers of individual scholars, and have not been widely used in practice due to complex hardware design, calibration and data processing

[0005] From the above introduction, it can be seen that the current testing methods for the surface topography of asphalt pavement are more or less deficient, especially for the acquisition of the three-dimensional topography of the road surface, there is still a lack of relatively simple and widely applicable testing methods at this stage

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