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A method for measuring the operating resonance frequency of paver

A technology of resonance frequency and measurement method, which is applied to the measurement of resonance frequency, measuring device, and measurement of ultrasonic/sonic/infrasonic waves, etc., which can solve problems such as poor pavement quality, inability to determine the resonance frequency of asphalt mixture, and large differences in asphalt components. To achieve the effect of improving the quality of the road surface

Inactive Publication Date: 2017-12-12
CHANGAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] During the construction of existing asphalt roads, due to the large difference in asphalt components, the resonance frequency of the asphalt mixture cannot be determined, and then when the asphalt mixture is paved, the density of the paved layer is low, and the road surface under construction poor quality

Method used

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  • A method for measuring the operating resonance frequency of paver
  • A method for measuring the operating resonance frequency of paver
  • A method for measuring the operating resonance frequency of paver

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Embodiment 1

[0053] The invention provides a method for measuring the operating resonance frequency of a paver, characterized in that the method for measuring the operating resonance frequency of the paver is as follows: figure 1 shown, including:

[0054] 101. Determine the experimental road surface with the same composition as the asphalt mixture used in the construction road surface, extract the first quantity of sample materials, obtain the first compactness of the sample materials under the detection of the non-nuclear density meter and the test results of the sample materials in the laboratory The second compaction degree detected in the method, obtain a net difference value according to the first compactness degree and the second compaction degree, and calibrate the non-nuclear density meter according to the net difference value.

[0055] 102. Use the vibration frequency monitor to obtain the actual vibration frequency of the paver, and draw the vibration frequency curve.

[0056] ...

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Abstract

The invention discloses a measuring method for the resonance frequency of the operation of a paver, and belongs to the field of road construction. The measuring method includes obtaining the compactness of a sample, calibrating a non-nuclear density gauge via the compactness, determining the corresponding relation between the actual vibration frequency of the paver and the displayed vibration frequency, enabling the paver to operate with various vibration frequencies, obtaining the actual paving compactness corresponding to each vibration frequency, finally selecting the maximum of the actual paving compactness, determining the vibration frequency with the combination of the corresponding relation, and regarding the vibration frequency as the resonance frequency of the operation of the paver. By the above method, during the road compacting operation of the paver, operation is performed according to the vibration frequency, bituminous mixture of the pavement can reach the maximum compactness, and the pavement quality of the road can be improved.

Description

technical field [0001] The invention belongs to the field of road construction, in particular to a method for measuring the operating resonance frequency of a paver. Background technique [0002] During the construction of asphalt pavement, the paving density of the paver is one of the important factors affecting the quality of the asphalt pavement. Research data and engineering practice have shown that the higher the initial compaction of the paving layer, the better the pavement construction quality . In order to improve the compactness of paving, an exciter is installed in the screed box of the paver, and the dynamic load of the exciter drives the screed to vibrate to compact the pressed material. [0003] The resonance theory holds that: when the paving operation causes the mechanical-material system to resonate, the amplitude of the particles of the material to be pressed increases greatly, the internal friction resistance between the particles decreases, and the effic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H13/00E01C19/12
Inventor 刘洪海张勇徐中新汪学斌张丙录张志耕陈疆韩久剑
Owner CHANGAN UNIV
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