Abstract
«Environmental safety “in the considered spatial limits of the Upper Kuban basin geosystem (F w=11,0*103 km3, W l=3,3*103 km3, Watm=110*103 Wb.g.U.K..=124,3*103 km3) makes up about 21.4% of the spatial limits of the Kuban River, where water resources are formed according to the average long-term data about 3,0 km3, which are used in various sectors of economic activity, including for the electricity generation at Zelenchukskaya HPP-PSHS and Krasnogorsk HPP-1 and HPP-2 under construction with installed power up to 25 mW, located below the HPP-PSHS Zelenchukskaya section and above the alignment (12 km) of the Ust-Dzhegutinsky reservoir. Such HPP-PSHS placement on a 15 km long section of the Kuban Zelenchukskaya riverbed and Krasnogorsk HPP-1 and HPP-2 under construction determined a highly active zone of influence (IV), which is caused by a change in the natural hydrograph of the Kuban River, with the formation of the channel flow movement unsteady hydraulic regime in the considered section of the river to the Ust-Dzhegutinsky reservoir. Unsteady changes in the water level in the Ust-Dzhegutinsky reservoir affects the pressure front structures safety, the functional operation of the water intake system in the Bolshoi Stavropol Canal (BSC) and hydraulic BSC operation. To assess the level of “environmental safety”, it became necessary to develop a mathematical model of the impact of the HPP-PSHS functional work and Krasnogorsk HPP-1 and HPP-2 under construction at the level modes of operation of the Ust-Dzhegutinsky reservoir.
Highlights
Operating Zelenchukskaya HPP-PSHS introduces certain changes in the hydrological regime of water flow formation within the catchment area (11,0*103 km3) river hydrographic network of the Upper Kuban (Wb.g.U.K.=124,3*103 km3), as the dominant factor of "environmental safety"
Studies have established that irreversibility in processes interaction and relationship (IIR) «AO» with «NE» in the zones of influence leads to the emergence of new phenomena in the geological environment of the lithosphere upper layers, in hydrographs and the channel part of the considered section of the river, the coastal strip in the floodplain part of the river network channels, the surface layers of the air environment above reservoirs and open sections of the water channel, and basin geosystem as a whole (Fig. 1)
At the end of the calculation, we take the obtained calculated hydrographs and the corresponding levels in the sections as the desired solution for finding the costs and levels. The algorithm for such a calculation is implemented as a program for hardware and was used to develop dispatching rules for managing the integrated water-economic Bolshoi Stavropol Canal (BSC) system, Zelenchukskaya HPP-PSHS and creating HMI
Summary
Operating Zelenchukskaya HPP-PSHS introduces certain changes in the hydrological regime of water flow formation within the catchment area (11,0*103 km3) river hydrographic network of the Upper Kuban (Wb.g.U.K.=124,3*103 km3), as the dominant factor of "environmental safety". Based on the comprehensive studies results of the changes under the influence of the processes of interconnection, interaction and relationship (IIR) natural (biotic, abiotic), social (living population) and technogenic (various types of hydraulic structures and related structures) components, the boundaries of the influence zones were determined among themselves within the considered spatial limits of the Upper Kuban basin geosystem. Based on the research results analysis of the identified impacts «AO» on «NE» within the spatial limits of the Upper Kuban basin geosystem with the boundaries’ definition of the influence zones, which determined their classification characteristics: low-active, active and strongly-active (Fig. 1), of which the highly active zone of influence IV in the area (15 km) from the pressure front of the Ust-Dzhegutinsky reservoir The conservative form of the one-dimensional continuity equation for the river channels with lateral tributaries has the form: Symbols Border of the republic rivers canal automobileƌŽĂĚƐ railways zones of influence
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