Мелиорация и гидротехника (Aug 2024)
Application of engineering geophysics methods in assessing the technical condition of engineering protection structures of the Shapsug reservoir
Abstract
Purpose: to apply engineering geophysics methods based on the assessment of reliability parameters using non-destructive testing to identify the state of the engineering protection structures of the Shapsug reservoir. Materials and methods. The materials for the study were non-destructive testing data performed at different times of the year at the Shapsug reservoir, using “Oko-3” ground penetrating radar, “Pulsar-2.2” unit, Sokkia CX-105 total station, Nokta Invenio Smart and PSG-MG4 static action penetrometer. During the inspection, attention is drawn to the presence of such defects and damages as: violation of the geometric dimensions of the element or structure section; presence of deformation of an element or structure as a whole; formation and decompaction of the voids; landslide processes; visual dynamic damage; various cracks and the size of their opening; concrete and metal structures corrosion, etc. Results. The engineering-geophysical method for assessing the technical condition of the engineering protection structures of the Shapsug reservoir has been carried out. The state of the connection between earthworks and concrete structures and the temperature-sedimentation joints between concrete and reinforced concrete structures, affecting their stability, has been studied. Radiograms of collapse sites that arose as a result of accidents and were eliminated during the reconstruction of the dam were obtained. Conclusions. It was determined on the results obtained, that the geophysical complex makes it possible to study earthen low-head dams when determining various soil parameters, and most importantly, to identify the position and size of various defects inside the earth foundation of the dam. The identified difficulties were successfully resolved using a combined geophysical method, and the main problem is the compilation and adaptation of this method for a specific object.
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