THE USE OF GEOTOMOGRAPHIC SCANNING IN MONITORING THE TECHNICAL CONDITION OF ENGINEERING PROTECTION IN THE LOWER KUBAN REGION

Purpose: to substantiate the possibility of using geotomographic scanning in monitoring the technical condition of hydraulic structures using the engineering protection of the Lower Kuban as an example. Materials and methods. The study was conducted using geotomographic scanning data obtained at the engineering protection of the Lower Kuban, namely, an low-head earth dam. The condition of the engineering protection structures was monitored by visual inspection, and also using various non-destructive testing devices that provide a detailed study of both the reinforced concrete lining and the soil base throughout the seasons. Results. The geotomographic research method for an in-depth study of the internal structure and properties of various objects without any mechanical intervention or damage to the object of study itself was applied. This approach is widely used in science and technology, since it allows to extract the valuable information about the hidden features of the object of interest, while remaining completely safe and without violating its integrity. Conclusions. This study demonstrated the high efficiency of geotomographic scanning for monitoring the technical condition of the engineering protection of the Lower Kuban River. The applied bandpass filtering procedure for high-frequency components allowed to identify internal structural defects of the low-head earth dam, such as cracks, voids, and soil softening zones, which are undetectable by traditional visual inspection. Analysis of the obtained data confirmed the presence of elevated defect concentrations in the dam lower layers, likely related to insufficient soil compaction during construction and the impact of external factors such as temperature fluctuations, vibration, and moisture.