Abstract

The article presents the results of field research conducted in the Langar flood reservoir in the Kashkadarya region. Accumulation of large amounts of muddy sediments occurred in flood reservoir basins. The useless dead volume of the anchor flood reservoir is completely filled with silty sediments. As a result, storing the required volume of water in the flood reservoir is impossible when the flood flows occur. Therefore, building a two-chamber filter in the water-bearing basin of the flood reservoir is advisable. A two-chamber clarifier built in the catchment basin allows for the temporary settling of turbid sediments and improves the operational conditions of the flood reservoir. The construction of the flood reservoir is placed in the river bed of the flood reservoir. The 2nd chamber is connected to the first chamber, the length L2 = 200 m, the width b2 = 80 m, it is 1.25 times larger than the width of the natural bed, and the depth h2 = 1.5 m. Both cameras are assumed to have the same longitudinal slope i1 = i2. Preliminary recommendations on the safety assessment of flood reservoirs have been developed.

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