Intelligent asphalt pavement compaction system and method based on ground penetrating radar

Abstract

The invention discloses an asphalt pavement intelligent compaction system and method based on a ground penetrating radar. The method comprises the steps that a pavement roller loaded with the ground penetrating radar calculates the pavement dielectric constant and density of a compaction position in real time through a matched GPS positioner in the compaction process; high-frequency noise generated by vibration in the compaction process is effectively removed through a digital filter installed in a controller. Compared with the prior art, the method has the advantages that the influence of vibration noise generated by the vibration mode of the road roller and road roller wheel-road surface coupling in the compaction process on the road surface compactness predicted value based on the ground penetrating radar is effectively removed; and when the pavement density is detected to exceed the target range, an operator is guided in real time to perform pressure compensation or compaction stop work through a real-time data display carried by the road roller, so that the purpose of real-time compaction control of the asphalt pavement is realized.

Description

technical field [0001] The invention relates to an asphalt pavement intelligent compaction system and method based on ground penetrating radar, and belongs to the technical field of road engineering non-destructive testing. Background technique [0002] Asphalt pavement compaction will affect the service level of asphalt pavement. This indicator is usually characterized by the density of the asphalt pavement mixture. Over-compacting or under-compacting during asphalt pavement compaction can lead to potential road damage (rutting, oil flooding, pushing, water damage, etc.) after completion and opening to traffic. [0003] Ground Penetrating Radar as a non-destructive testing technology can provide real-time asphalt pavement compaction control. Ground penetrating radar calculates the dielectric constant of each layer of asphalt pavement by analyzing the waveform, amplitude and time changes of the high-frequency electromagnetic wave reflected signal from the road structure, a...

AI Technical Summary

Problems solved by technology

[0010] (1) The vibration mode of the roller and the roller-road contact will cause high-frequency vibration of the ground-penetrating radar antenna, resulting in high-frequency noise in the obtained permittivity and density data;

[0011] (2) The installation position of the ground penetrating radar on the roller and the materials of the installation parts will interfere with the reception of electromagnetic wave signals and generate noise

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