Method and device for detecting clogging and noise of porous asphalt pavement with vibration damping response

By using a vibration damping response detection method, which utilizes hammer excitation and sensor signal acquisition to calculate the damping ratio and establish a quantitative correlation model, the destructive and time-consuming problems of traditional detection methods are solved, enabling non-destructive, rapid, and accurate assessment of the blockage degree and noise level of porous asphalt pavements.

CN122108882APending Publication Date: 2026-05-29POLY CHANGDA ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
POLY CHANGDA ENGINEERING CO LTD
Filing Date
2026-01-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional methods for detecting blockages in porous asphalt pavements are highly destructive and time-consuming, and cannot achieve simultaneous, non-destructive, and accurate assessment of the degree of blockage and noise levels.

Method used

A vibration damping response detection method is adopted. The porous asphalt pavement is excited by hammering, and the signals are collected by acceleration and noise sensors. The damping ratio is calculated by combining frequency response and vibration attenuation characteristics, and a quantitative correlation model is established to achieve non-destructive and rapid assessment of pavement congestion and noise levels.

Benefits of technology

It enables non-destructive, rapid, and accurate assessment of the degree of blockage and noise level in porous asphalt pavements, overcoming the destructive drawbacks of traditional testing, improving testing efficiency and scientific rigor, and providing precise data for pavement maintenance.

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Abstract

The present application discloses a method and device for detecting the clogging and noise of porous asphalt pavement with vibration damping response, which comprises the following steps: preparing a porous asphalt mixture rutting plate, collecting initial vibration response signals and noise levels by hammering excitation, and obtaining water permeability coefficients through water permeability test; carrying out a plurality of gradient clogging simulation experiments by filling graded sand, and repeatedly collecting relevant parameters after clogging; pre-processing the vibration signals and performing frequency spectrum analysis, and extracting damping ratio by using free vibration attenuation method; calculating the clogging degree based on the water permeability coefficient, and establishing a quantitative regression relationship model of damping ratio, clogging degree and noise level; applying the same excitation to the pavement to be tested, and realizing nondestructive evaluation and noise determination through the model. The device of the present application comprises a mobile platform, a hammering assembly, a sensing assembly and a data collector. The present application does not need to damage the pavement, and has high efficiency and strong repeatability, thereby providing a scientific basis for the maintenance of porous asphalt pavement.
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