Urban buried pipeline ground penetrating radar calibration method

Abstract

The invention provides an urban buried pipeline ground penetrating radar calibration method. The method comprises the steps that S1, various standard blocks are designed and manufactured, various standard sample blocks are formed by combining the standard blocks into different layering models, and the standard sample blocks are used for simulating real urban road layering and buried pipelines of the real urban road layering; s2, continuously scanning the calibrated ground penetrating radar above the standard sample block from left to right to generate a visual picture; s3, according to the generated picture, calculating the thickness, the pipeline burial depth, the pipeline spacing, the pipeline trend and the pipeline medium attribute of different layers; and S4, comparing, calculating the metering performance error of the calibrated radar, and calibrating the metering performance of the calibrated radar. Meanwhile, whether the calibrated radar judgment is accurate or not is checked; s5, judging whether the radar performance is qualified or not according to a result of the step S4; according to the invention, the problem of measurement result deviation caused by factors such as different dielectric constants, different material components, noise interference and the like is solved.

Description

technical field [0001] The invention relates to the technical field of measuring devices, in particular to a ground penetrating radar calibration method for urban buried pipelines. Background technique [0002] Ground Penetrating Radar is an efficient shallow geophysical detection technology. It transmits high-frequency electromagnetic pulse waves, uses the difference in electrical parameters of the underground medium, and analyzes the kinematic and dynamic characteristics of the echo according to the amplitude, waveform and frequency of the echo. And infer the medium structure and physical properties. In the fields of highway, railway, water conservancy, geology, archaeology, electric power, mining, aviation, etc., ground penetrating radar plays an important role in solving engineering quality inspection, site survey, route selection, disease diagnosis, advanced forecasting, and geological structure research. And other issues. For example, in the detection of highway surf...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a ground-penetrating radar calibration method for urban buried pipelines. The ground-penetrating radar is used to detect the real and simulated urban road layered structure and the buried position of the pipeline, and the measurement performance of the radar on the road layered structure and the pipeline are more realistically tested. The detection performance of direction and pipeline medium properties solves the problem of deviation of measurement results due to factors such as different dielectric constants, different material compositions, and noise interference

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