DETERMINATION OF CHANGES IN THE BOTTOM ELEMENT OF THE AMUDARYA RIVER BED UNDER CONDITIONS OF REGULATED WATER FLOW
Keywords:
river bed level, hydrological station, hydrotechnical facilities, water consumption.Abstract
This article presents the results of the study of the dynamics of the bottom of the stream in the lower reaches of the Amudarya from the lower reaches of the Tuyamoyin reservoir to the Mejdurech dam. As a result of the study of the annual water consumption at the hydro stations, the connections between the water consumption in the river and the level of the bottom of the stream were obtained. These connections are mainly recommended for determining the deformation of the riverbed in the lower part of the Takhyatosh hydroelectric network. In general, the analysis of the channel bottom elevation under conditions of regulated water flow below the Tuyamuyun reservoir showed that the channel process at the Tuyamuyun, Nietbaytas and Kipchak sections has not yet stabilized and it is not possible to obtain satisfactory connections between the water flow and the river bed bottom elevation . As for the Tuyamuyun gage, here, although there are satisfactory connections between the water flow and the bottom marks of the river bed and in recent years the reliability coefficient has increased to 0.8, the channel process is still ongoing, but less active compared to the Tuyamuyun gauging sites and Kipchak. However, the riverbed between Tuyamoyin and Takhyatosh hydroponics continues to change, and the riverbed processes have not stopped.
References
1. V.S. Altunin. Kinematic and morphological dependencies of river flow and their application to the calculation of deformations of the bridge bed. Abstract. Moscow, 1965.
2. G.V. Jeleznyakov, B.B. Danilevich. Accuracy of hydrological measurements and calculations. Gidrometeoizdat, L., 1966, p.237.
3. A.M. Muhamedov Study of channel processes of the Amu Darya River. Bulletin of agricultural sciences No. 8, 1973, pp. 76-83.
4. H.A. Ismagilov. Mudflows, channel processes, anti-mudflow and anti-flood measures in Central Asia. Tashkent, 2006, p. 262.
5. I. A. Ibragimov, U. A. Juraev, and D. I. Inomov, “Hydromorphological dependences of the meandring riverbed forms in the lower course of the Amudarya river,” IOP Conference Series. Earth and Environmental Science, vol. 949, no. 1, p. 012090, Jan. 2022, doi: 10.1088/1755-1315/949/1/012090.
6. I. A. Ibragimov, D. I. Inomov, A. I. Ramazonov, N. Q. Idiev, and M. B. Makhmudov, “Calculation of river deformation under conditions of regulated flow of Amu-Darya,” IOP Conference Series. Earth and Environmental Science, vol. 1138, no. 1, p. 012005, Feb. 2023, doi: 10.1088/1755-1315/1138/1/012005.
7. I. A. Ibragimov, D. I. Inomov, and F. T. Xaydarova, “Coefficient roughness of the riverbeds in conditions of regulated water flow,” Bio Web of Conferences/BIO Web of Conferences, vol. 53, p. 01003, Jan. 2022, doi: 10.1051/bioconf/20225301003.
8. I. A. Ibragimov, D. I. Inomov, I. I. Idiyev, Sh. Sh. Mukhammadov, and S. S. Abduvohitov, “Assessment of the effect of adjusted river flow on crops,” Bio Web of Conferences/BIO Web of Conferences, vol. 103, p. 00012, Jan. 2024, doi: 10.1051/bioconf/202410300012.
