When it comes to highway inspection, people usually think of road collapse and road divider catching fire. In fact, highway inspection has the same difficulty and requirements as powerline inspection. To give a few simple examples: High Slope drainage ditch, drainage ditch above tunnel entrance, the function of drainage ditch should be understood by everyone, the drainage ditch of highway is especially important, especially the drainage ditch of the above two sections. If there is damage, the personnel are not easy to arrive, which leads to long time no inspection and discovery, and the landslide and collapse will be caused when the drainage is not smooth in rainy season. The way of highway inspection is actually the same as that of power grid inspection. In the early stage, zoom cameras were used to take photos of visible light at different angles, pay attention to the pause time in different sections, and record the time and place at the same time, later, two people need to cooperate with each other, and the photos need to be viewed one by one on the computer. Pay special attention to the crack. As shown in the following figure:
Precautions
1. Highway inspection requires close cooperation between two people, one full-time flight and the other observation and recording.
2. Check the target area carefully, pay attention to cracks and falling stones, and work in the spring and autumn season. The forest in summer will have a certain impact on the observation effect.
3. When observing the ditch, pay attention to the starting point and ending point, and whether there are missing areas in the middle.
