Multi-channel ground penetrating radar technique based subgrade defect detection vehicle

Abstract

The invention discloses a multi-channel ground penetrating radar technique based subgrade defect detection vehicle, which comprises a vehicle body (1), wherein the vehicle body (1) is provided with acab (16), an operation room (17) and a device storage room (18) in sequence from front to rear; the tail of the vehicle body (1) is provided with a radar antenna trailing device (2); the radar antennatrailing device (2) comprises a horizontal T-shaped trailing connecting piece (14) connected with a trailer bar (29) at the tail of the vehicle body (1); left and right sides of the T-shaped trailingconnecting piece (14) are each hinged with two radar antenna trolleys (20) in sequence from front to rear; X-shaped hinging pieces (19) are arranged between two radar antenna trolleys (20) which areside by side in a left-right manner; and hinging rods (15) are arranged between two radar antenna trolleys (20) which are side by side in a front-rear manner. The vehicle can be realized in quick assembly and disassembly, and has a radar control system with a smaller turning radius and an expandable antenna quantity, and a lower radar antenna ground clearance.

Description

Technical field [0001] The invention relates to a roadbed disease detection vehicle based on multi-channel ground penetrating radar technology, which belongs to the field of road detection equipment and is used for identifying hidden roadbed diseases such as voids, cavities, and loose soil. Background technique [0002] Subsidence and other road diseases frequently occur. The detection of roadbed diseases has been paid more and more attention by urban road management departments, and the corresponding work has become more and more arduous. Rapid detection technology based on multi-channel radar has become more and more powerful for rapid detection of roadbed diseases in urban roads. means. [0003] Existing detection device, such as the patent number "201720665432.3", the patent name is "a multi-functional road CT comprehensive inspection vehicle", and its technical means is "the said detection system includes a multi-functional laser set at the lower part of the front end of the v...

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Problems solved by technology

[0003] Existing detection devices, for example, the patent number is "201720665432.3", the patent name is "a multifunctional road CT comprehensive detection vehicle", and its technical means is "the detection system includes a multifunctional laser set at the lower part of the front end of the vehicle body. Profiler, road surface damage detection camera installed at the upper part of the front end of the car body, ground penetrating radar installed at the lower part of the rear end of the car body, and friction coefficient testing equipment installed at the rear end of the car body", the ground penetrating radar equipment passes through the complex steel structure The parts are fixed on the large-scale driving equipment, and it takes too much time to assemble and disassemble the ground penetrating radar for each inspection, which reduces the work efficiency; the radar antenna is relatively high from the ground, and when encountering poor road conditions The vehicle body bumps together, resulting in poor coupling effect between the antenna and the ground, which is not conducive to the collection, processing and interpretation of radar data; the complex steel structure is rigidly fixed on the inspection vehicle, which increases the length of the vehicle body and increases the size of the inspection vehicle. The turning radius of the steel structure; the connection method of the rigidly fixed radar antenna of the steel structure is limited by the weight of the radar equipment and the connecting components, so it is difficult to expand the number of radar antennas

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