As part of the master's thesis, we monitored the movements of the Blate landslide. It's a landslide that occurred after a major storm with heavy rainfall in 2023. Our task was to establish a geodetic network in the national coordinate system, which was used to conduct classical geodetic measurements for surveying check points and terrestrial laser scanning. We carried out 3 periodic surveys, which were scheduled according to the weather conditions on the landslide area. The result of the surveys was a point cloud for each measurement and the coordinates of the check points stabilized on the landslide area. We compared the point clouds using Leica Infinity software to detect changes, and then we compared the identified changes with the changes of the check points. The check points served as a control for determining the movements of the landslide. The results of the comparison showed that the Blate landslide is an active landslide with small but not negligible changes. Based on the observed changes, we conclude that remediation of the Blate landslide is strongly recommended, if not mandatory, as new heavy rainfall could lead to further movements of the landslide and potentially a larger natural disaster, endangering numerous residential houses and commercial buildings, as well as a drinking water source.
|
