Device for simulating permeable pavement structure vibration under vehicle load and test method

Abstract

The invention discloses a device for simulating permeable pavement structure vibration under vehicle load, which comprises a fixing frame and an electromagnetic vibrator, a mold is placed on a supporting table, the mold is fixed on the supporting table through the fixing frame, and a permeable pavement test piece is placed in the mold; the electromagnetic vibrator comprises a permanent magnet, aniron rod, an alternating current coil and an insulating sleeve; the insulating sleeve is fixed to the center under the supporting table, the permanent magnet is placed in the insulating sleeve, the alternating-current coil is wound on the iron rod, the iron rod is inserted into the insulating sleeve, closed air exists between the permanent magnet and the iron rod, and the alternating-current coilis in signal connection with the controller. According to the device for simulating the structural vibration of the permeable pavement under the vehicle load and the test method, the real service condition of the outdoor permeable pavement can be obtained by simulating the vibration of the permeable pavement caused by the vehicle in the driving process, and the device is simple in structure, easyto maintain and good in vehicle vibration simulation effect.

Description

technical field [0001] The invention relates to a device and a test method for simulating the vibration of a permeable pavement structure under vehicle load, and belongs to the field of vehicle vibration. Background technique [0002] Permeable pavements are widely used in residential areas and parks due to their effective hydrological properties, such as reducing runoff during floods, delaying rainwater entering the sewer system, and improving groundwater quality, etc. However, the infiltration of pollutants can lead to clogging, clogging phenomenon It means that after the permeable road is put into use, various foreign particles block the road and enter the permeable pavement, thereby reducing the permeability coefficient, which will make it unable to work normally after a short period of use, resulting in the deterioration of the permeable performance of the permeable pavement. The service performance of the pavement has a great influence, but there is no device that can ...

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Problems solved by technology

[0002] Permeable pavements are widely used in residential areas and parks due to their effective hydrological properties, such as reducing runoff during floods, delaying rainwater entering the sewer system, and improving groundwater quality, etc. However, the infiltration of pollutants can lead to clogging, clogging phenomenon It means that after the permeable road is put into use, various foreign particles block the road and enter the permeable pavement, thereby reducing the permeability coefficient, which will make it unable to work normally after a short period of use, resulting in the deterioration of the permeable performance of the permeable pavement. The service performance of the pavement has a great influence, but there is no device that can simulate the vibration of the permeable pavement structure under the vehicle load. Permeable pavement with good application prospects is not suitable for this device. First, the main research direction of permeable pavement is mainly water permeability. These devices are not waterproof and cannot simulate road penetration; second, most of these devices are simulated by motors. The vibration of the vehicle load on the road surface, the vibration force generated by the motor during work will cause the motor to loosen, which will seriously cause the motor to burn out, and the high temperature generated by the motor during work will also cause the motor to burn out. It will cause the bearing to be blocked, and finally cause the motor to burn out; therefore, it is necessary to design a device for simulating the vibration of the permeable pavement structure under vehicle load, and to simulate the vehicle vibration of the outdoor permeable pavement through indoor tests, and to study the effect of vehicle vibration on the service time of the permeable pavement. It has a good application prospect in the construction and maintenance of national road engineering

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