Abstract
A comprehensive study of the flow of water plays an important role in the design of the area of the lower reaches of the drainage and drainage structures of hydraulic structures. In particular, the complex processes associated with the flow movement in the lower reaches of low and medium pressure reservoirs play an important role in the selection of the appearance of the structure, structural elements and their shapes, sizes and location conditions. One of the important issues is to assess the strength of the elements of the lower basins of water intake facilities and hydropower plants in the current reservoirs, to determine the mode of connection of the basins, to improve the methods of quenching kinetic energy in the reinforced areas of the lower basin. Based on the 2 schemes adopted in this article, the hydrostatic pressures of several types of power extinguishers installed in the area of the water injection well, providing the bottom pound strength, were determined for the experimental device.
Highlights
The current entering the bottom of the structure will have very large energy and destructive ability
It should be noted that at this stage, the main focus was on the data obtained from the experiments conducted using a high level and wide range of applications and the identified patterns; The location of the extinguishing structures in the injection wells, which are built to extinguish the full energy of the flow in the lower reaches of the discharge structures of low and medium pressure reservoirs, evenly distributes the impact force of the flow
Due to the lack of pressure in water injection wells without power extinguishers, the stability of water injection wells is reduced by 30-50%
Summary
The current entering the bottom of the structure will have very large energy and destructive ability. Quenching its excess kinetic energy increases its safe operation and service life. Experimental studies show that the quenched amount of flow energy is 60-70% [1, 2]. To increase the extinction of excess energy of the water flow, to improve the hydraulic conditions of the lower pound, to eliminate general and local washes in the lower pound, to change the mode of movement of the water flow along the seabed to the surface in the apron, to reduce or eliminate the flow platform, waterproof wall, platform, checkerboard, flow directing wall or spreading walls are designed. The results of effective research in this area have been presented in several technical [14] publications.
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