Testing device and testing method for ground penetrating radar

Abstract

The invention discloses a testing device and a testing method for a ground penetrating radar. The testing device comprises a base provided with a testing groove body, wherein the testing groove body is internally filled with a simulation device for simulating a pavement structure and internal defects and diseases; the simulation device comprises a pavement surface layer, a pavement base layer, a sand filling body for simulating a roadbed and different disease body models arranged in the sand filling body; the simulation device can place different disease body models in the sand filling body according to test requirements to form different simulation devices; and the pavement surface layer and the pavement base layer are detachably assembled with the testing groove body. The device can be used for testing a ground-coupled radar or an air-coupled radar at the same time. According to the invention, ground penetrating radar technology road thickness test and hidden disease test models are integrated, the detection capability of the ground penetrating radar on road thickness and road defects can be effectively tested, the test process is unified, convenient, efficient and standardized, and the testing device and the testing method are suitable for popularization and application.

Description

technical field [0001] The invention relates to the field of road engineering, in particular to a ground-penetrating radar testing device and a testing method, which can be used to test the detection capability of the ground-penetrating radar for the thickness of the road surface structure layer and internal defects of the road surface. Background technique [0002] Ground-penetrating radar is an electromagnetic technology that uses radio waves to detect the distribution of underground media and scan invisible targets or underground interfaces to determine their internal structure or position. Its working method and principle are as follows: high-frequency electromagnetic waves are transmitted through the transmitting antenna in the form of broadband pulses, reflected or transmitted by the target, and received by the receiving antenna. When the high-frequency electromagnetic wave propagates in the medium, its path, electromagnetic field strength and waveform will change with...

AI Technical Summary

Problems solved by technology

[0003] At present, ground penetrating radar technology is developing rapidly at home and abroad, and equipment manufacturers and equipment models are diversified. Aiming at road surface thickness radar detection and road surface defect radar detection in road engineering, there is a lack of a unified, convenient, efficient, and standardized testing device and testing method.

Images