Development of riverbed processes in the Cherek river as a result of the construction of the Kashkhatau HPP (KBR)

Abstract

The purpose of the work is to conduct research aimed at identifying dangerous areas adjacent to the village of Babugent as a result of changes in the channel processes at the confluence of the Cherek Balkarsky and Cherek Bezengiysky rivers. On this site, field surveys of channels were carried out, the sharp changes of which began with the construction of a dam for the Kashkhatau hydroelectric power plant 1 km downstream. As a result of the field survey, areas with a large amount of deposited material in the beds of the Cherek Balkarsky and Cherek Bezengiysky rivers were identified, as well as erosion of the coastal slope of the floodplain terrace, where the rural cemetery is located. According to the data of the field work, calculations were carried out to determine the height of the water level depending on the maximum flow rates of flood water of different percentage provision. Based on the results of the calculations and field surveys, the zones of flooding and underflooding of the territories of the Babugent village, which is located between the Cherek Balkarsky and Cherek Bezengiysky rivers, have been determined. 22 household plots and households of the private sector of the village fall into the zone of flooding and underflooding. Recommendations are given on carrying out the necessary measures to ensure the safety of people’s livelihood and the infrastructure of the village.