A roadbed space-based array detection probe, detection system and detection equipment

Abstract

The invention relates to a roadbed space-based array detection probe, a detection system and detection equipment. A highway subgrade space-based array detection probe, comprising a supporting frame, a bracket, a suspension device and a hammering actuation device; the suspension device is installed on the support and has a hammering hole; the hammering actuation device Installed on the support frame and pass through the hammering hole; the bracket is installed on the support frame; the hammer actuating device has a hammer head, and the hammer is driven Hitting action; the suspension device is equipped with a plurality of microphones; the plurality of microphones focus on the position below the hammer head, and are all connected to the host computer. In the space-based array detection probe for highway subgrade provided by the present invention, all microphones on it are focused to realize fidelity detection and high resolution of effective signals, ensuring the reliability of detection results; The vibration signal has excellent correlation.

Description

technical field [0001] The invention relates to highway detection, in particular to a highway roadbed space-based array detection probe, detection system and detection equipment. Background technique [0002] Various types of highway subgrades may have poor filling after trenchless construction, soil erosion caused by groundwater leakage, or failure of support layers in karst areas, etc., which constitute hidden dangers of road collapse and seriously threaten the safety of buildings, vehicles or pedestrians. Reliable and rapid detection of hidden dangers of road collapse is of great significance. [0003] The existing detection technologies include ground penetrating radar method and seismic wave method. The former has high detection efficiency and can detect tens of kilometers per hour. It is widely used by relevant departments of highway construction and maintenance. parameters, and the results have multiple solutions, which often lead to abnormal misjudgments or omission...

AI Technical Summary

Problems solved by technology

However, there are two problems in roadbed detection: first, the sensitivity of a single microphone is limited, and the vibration response signal of the roadbed is difficult to ensure high signal-to-noise ratio and resolution when non-contact measurement is used, thus increasing the possibility of identifying hidden dangers Second, road testing is carried out in an open environment, where pedestrians, vehicles, and locomotives are heavily disturbed by noise. In rapid and continuous testing, it is necessary to suppress these signal interferences that have nothing to do with the excitation and response of active seismic waves.

[0005] Therefore, there are deficiencies in the existing road subgrade detection, and the detection efficiency and resolution still need to be improved and improved.

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