Side Slope Monitoring Road Number 12 Area Using Close-Range Photogrammetry

Abstract

This article uses a close-range photogrammetry technique that can help to check and monitor the side slopes Route 12 area to make decisions for repairing soil slopes or warning of disasters. caused by landslides in advance. First, the researchers gave examples of 3 types of slopes: laterite slope, rock soil slope, and sprayed concrete slope. Second, take pictures with a digital camera, and configure the coordinates of ground control points. Inspection points with Total Station to create a 3D Model. The period of data collection was 1 year. The data were collected 12 times, dividing the data collection once a month. Next, Take the 3D model obtained from close-range photogrammetry processing. Let's analyze the movement of soil slopes each month. The results showed no movement of the 3 slope samples was found. However, traces of water erosion were found on the laterite slope and rocky soil slopes. In summary, using a close-range photogram can know the physical characteristics of soil slopes with centimeter accuracy.