Regulation of water flow on the foothills on the Ukrainian Carpathians rivers with the use of flooded groynes

Abstract Based on the results of extensive laboratory studies of regulatory and protective structures – groynes, carried out in the hydrotechnical laboratory of National University of Water and Environmental Engineering (NUWEE), recommendations for the design, construction, and operation of structures have been developed. The method of hydraulic calculation of groynes is presented. According to these recommendations, a system of structures with experimental types of groynes on the foothills of the rivers of the Ukrainian Carpathians was designed and built. Surveys were carried out on objects of various types of groynes after the passage of floods on the rivers of the specified region. The causes of deformations of buildings and their destruction have been established. The influence of the existing groynes on the channel process has been studied. Conclusions were drawn on the further use of groynes structures as regulatory and protective structures in the foothills of rivers.