•  
  •  
 

Irrigation and Melioration

Article Title

EFFECT OF BEDLOAD SEDIMENT NATURAL COMPOSITION ON GEOMETRIC AND DINAMIC CHARACTERISTICS OF CHANNEL FORMS

Abstract

The article brings up data on sediment diversity at watercourse bed and on their movement in the form of ridges. The ridge form movement of sediment leads to the reduction of reservoir volume and canal cross section area, which has an effect on their carrying capacity, filling of pump station forechambers and hydroelectric station pressure basins with sediment. The presence of sediment in flow leads to abrasive deterioration of pumps, water motors and pressure pipes and to other negative consequences. Research work tasks on the study of these effects have been examined with the purpose of preventing such negative consequences. On the basis of laboratory data diagrams and relationships were obtained for ridge length, height and movement velocity vs. sediment hydraulic and geometric sizes.

First Page

40

Last Page

43

References

1. Арнагельдиев А., Костюковский В.И. Пустыня Каракумы. Природа и человек. - М.: Наука, 1985. - 164 с. 2. Лонгинов В.В. Что такое литодинамика // Ж: Земля и вселенная, 1980. - №6. - с. 36-41. 3. Мажидов Т.Ш. Расчетные гидравлические характеристики потоков и параметров песчано-гравий ных гряд с учетом состава наносов. Автореферат диссертации на соискание ученой степени кан- дидата технических наук. - Л., 1984. -16 с. 4. Snishenko B.F., Mukhamedov A.M., Majidov T.SH. Bedlam composition effect on dune shape parameters and on flow characteristics. International Association for Hydraulic Research. XXIII Congress, Ottawa, 1989. - pp.105-112. 5. Н.М.Икрамов. Грядовое движение наносов в размываемых руслах // Ж. "Ирригация ва мелиорация". - Ташкент, 2017. - №2(8). - с. 44-46.

This document is currently not available here.

Share

COinS