A method for extracting mesoscopic seepage path of asphalt mixture

Abstract

A method for extracting the mesoscopic seepage path of asphalt mixture according to the present invention relates to a method for extracting the seepage path of asphalt mixture from the tomographic image of the water body by using image processing, the purpose is to overcome the macroscopic permeability coefficient in the prior art as an asphalt mixture Moisture migration evaluation index, but for the problem that the function design of permeable asphalt pavement has little effect, the steps are as follows: Step 1, conduct seepage test on asphalt mixture sample; Step 2, extract water body fault image of water body fault image; Step 3, Get the image number; step 4, get the water block number; step 5, establish the initial seepage path matrix; step 6, retrieve all the water body fault images and extract all the seepage paths to the end, and get the number of seepage paths, the number of seepage paths is equal to The number of columns in the seepage path matrix.

Description

technical field [0001] The invention relates to a method for extracting the seepage path of asphalt mixture, in particular to a method for extracting the seepage path of asphalt mixture from a tomographic image of a water body by using image processing. Background technique [0002] Sponge city is the development direction of future cities. As an important part of the city, asphalt pavement plays an important role in the construction of sponge city. Pavement bears surface runoff and precipitation. Therefore, in the construction of sponge city, it is hoped that the pavement structure or material has the function of drainage. Permeable asphalt pavement has become the first choice for road construction of sponge city. [0003] The above-mentioned asphalt mixture is a heterogeneous porous medium. The seepage path of water in it will change with the pore structure and affect the drainage performance of the asphalt mixture. Therefore, the seepage path can reflect the effect of the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for extracting the mesoscopic seepage path of asphalt mixture in order to overcome the problem that the macroscopic permeability coefficient is used as the evaluation index of asphalt mixture moisture migration in the prior art, but has little effect on the functional design of permeable asphalt pavement

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