On the issue of the through structures use in regulating river flow

The analysis of the implementation of the task of establishing a continuous waterway from Europe to Asia is carried out. The key area chosen for you is the area where the upper reaches of the Iset River and its tributary, the Latki River, converge as closely as possible with the Chusovaya River. The organization of end-to-end hydraulic structures is being considered in order to increase the guaranteed depths on the shipping route. Their characteristic feature is the presence of reduced flow in the blocked part of the riverbed compared to the natural state. Reducing the flow rates behind the structure creates conditions for sediment deposition and ensures the preservation of a favorable environmental situation in the river flow control zone. The relevance of studying the hydraulic regime in the zone of interaction of permeable barriers with the flow, the development of a computational justification for their design is determined by the advantages of through structures in comparison with continuous ones. The objectives of regulating the hydraulic flow regime with permeable structures are to protect the shores from erosion, create flow-through isolated water areas, block non-navigable branches, and ensure guaranteed depths on the shipping route. Unlike gravity-type structures, the stability of which is determined by the mass of the ground, through structures are lighter structures; their strength and stability are determined not only by the mass of the elements, but also by the specific engineering solutions of individual nodes. The effect of through structures is determined by the building coefficient, the degree of flow obstruction, the installation angle relative to the shore, the flow velocities in the inter-dam spaces, the distances between structures, and other parameters that are calculated based on dependencies describing the flow hydraulics. The calculation of the dimensions of through half-dams and their planned layout is the most important issue to be solved during design.