When it comes to road asphalt surface testing, it comes first to the detection of such indicators as road damage, flatness, friction, road tracks, etc., which are often merely “charted, unknown”. As road diseases, especially structural ones, are often caused by internal problems that are gradually reflected in the road chart, can internal problems be detected as early as ct scans to achieve “early detection, early treatment” when road asphalt surfaces are tested
Internal diseases
Mine detection occurs through the launch of high-frequency electromagnetic waves into the interior of the road, which can easily be judged by the presence of a disease in the interior of the road because of the wide variation of wave shapes and amplitudes when the electromagnetic waves travel through different media underground. In recent years, the centre for conservation technology of the institute of engineering and engineering in jiangsu has conducted in-depth research on mine detection techniques, developed radar equipment and data analysis teams, and accumulated extensive engineering experience。
Mine detection principles
Radar equipment -- hard power
In order to do good, we must be able to do so first, as do radar detection, which is now equipped with two radar detection units. One of these is the usus hand-held survey of the depth of mines, divided into three shield antennas (500 mhz, 1000 mhz, 2000 mhz), which allow for the detection of surfaces at different depths of 0. 2 m-3 m using different frequency antennas, mainly for local sections of the road, with a maximum reflection of the internal state of the road。
If hand-held radars are able to resolve the precision detection of local locations, swedish mala vehicle-mounted mine detection meets the need for continuous high-speed detection. The swedish mala radar in our compound is equipped with a 750 mhz shield antenna, which, using the latest real-time sampling techniques, has significantly increased the speed at which surface data can be collected, with a maximum detection rate of 80 km/h, subject to the assurance of high accuracy。
Technical team -- soft power
Radar detection requires not only specialized equipment, but also a strong data analysis capability, which has led to the establishment of a dedicated technical mine detection team in our compound, which is permanently engaged in radar detection and is composed of highly theoretical and experienced personnel on the ground. On this basis, the court also organizes regular exchanges of national and international experts on mine detection applications。
Engineering applications
At present, our compound has tested nearly 10 highways, including the ningtong highway, the jiang guang highway, the river highway, the high highway for ping dynamite, the high highway for pingsing salt and the nine sing highway. Monitoring and identification of faults, loose, water-bearing, cracking diseases, etc. Occurring in the interior of the road, as well as validation through core sampling, ensuring the accuracy of radar detection results, and building valuable experience in furthering the use of mine detection to achieve a true “flammation eye” of internal path detection。
Radar image processing and authentication
On-site testing
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