Irrigation and Melioration


Presents the results of experimental studies aimed at developing a new damper design at the spillway structure. The analysis of the distribution diagrams of the velocities at the spillway was carried out, the results of which showed that the bottom flow velocity is higher than the surface velocity by 3–17%. According to the research results, it was found that in the second variant of the research this increase is 2–22%. The maximum values of specific flow rates in the first variant of the study in the apron varied relative to the downstream stilling well within 1.5–40%, in the second variant by 2–30%. The values of specific consumption in the first variant of the study in the apron increased relative to the stilling well of the lower pool within 19–85%, in the second variant by 49–89%. According to the results of experimental studies, it was found that when passing various flows through the spillway with the option without a damper, the value of the Froude number varies in a wide range, reaching Fr = 5.0, which corresponds to the rapid movement of the flow. When installing an energy absorber at the end of each drop, the maximum value of the Froude number is Fr = 2.60; when installing the absorber of the concave shape under study, it is equal to Fr = 1.20,

примениwhich contributes to the maximum decrease in the destructive ability of the discharged flow in the downstream of the structure. As the results of the comparative analysis show, the recommended option with a concave damper works most effectively. The maximum value of the Froude number is Fr = 2.20. With such an alignment of the Froude number values, the destructive ability of the water flow at the junction section of the downstream of the hydraulic structure is significantly reduced.

First Page


Last Page



Voynich-Syanozhentskiy T.G. K raschetu dliny donnogo gidravlicheskogo pryzhka [Calculating the length of the bottom hydraulic jump] Tbilisi, Izvestiya TNISGEI, 1958, v.10, Pp.40 - 49. (in Russian)

Bazarov, D., Uralov, B., Matyakubov, B., Vokhidov, O., Uljaev, F., Akhmadi, M. The effects of morphometric elements of the channel on hydraulic resistance of machine channels of pumping stations. IOP Conference Series: Materials Science and Engineering. 2020. 869(7). DOI:10.1088/1757-899X/869/7/072015.

Vyzgo M.S., Kuz'minov YU.M. Izmeneniye dliny gidravlicheskogo pryzhka s izmeneniyem sherokhovatosti dna vodoboya [Change in the length of a hydraulic jump with a change in the roughness of the bottom of the pond]. Hydraulic engineering. Moscow, 1963, No2, 49 p. (in Russian)

Gun'ko F.G. O gidravlicheskom pryzhke i sopryazhennykh glubinakh v prostranst-vennykh usloviyakh [On the hydraulic jump and conjugate depths in spatial conditions]. Izvestia VNIIG. Leningrad, 1958, v.59, Pp. 100-119. (in Russian)

Bazarov, D., Markova, I., Raimova, I., Sultanov, S.: Water flow motion in the vehicle of main channels. IOP Conf. Ser. Mater. Sci. Eng. 883, 012001 (2020). https://doi.org/10.1088/1757-899x/883/1/012001.

Dmitriyev A.F., Khlapuk N.N. Eksperimental'nyye issledovaniya donnogo gidravlicheskogo pryzhka [Experimental studies of a bottom hydraulic jump]. Irrigation and drainage and hydraulic engineering construction. Lviv, 1979, v. 7, Pp. 46-50. (in Russian)

Dolgachev F.M., Pashkov N.N. Opredeleniye sopryazhonnykh glubin pri nalichii gasiteley energii [Determination of conjugate depths in the presence of energy absorbers]. On Sat. works of IISS. Hydraulics and water supply issues. Moscow, 1980, No174, Pp. 54-58. (in Russian)

Bazarov, D., Shaazizov, F., Erjigitov, S.: Transfer of Amudarya flowing part to increase the supportability of the Uzbekistan southern regions. IOP Conf. Ser. Mater. Sci. Eng. 883, 012068 (2020).https://doi.org/10.1088/1757-899x/883/1/012068.

Zheltovskaya L.A. Kinematicheskiye kharakteristiki potoka za vodoslivnymi plotinami pri poverkhnostnom rezhime sopryazheniya b'yefov v prostranstvennykh usloviyakh [Kinematic characteristics of the flow behind the spillway dams in the surface mode of conjugation of the basins in spatial conditions]. Abstract dis. Candidate of Engineering Sciences, LPI, Leningrad, 1991, 16 p. (in Russian)

Kumin D.I. Turbulentnost' i gasheniye energii pri sopryazhenii b'yefov [Turbulence and energy extinguishing at conjugation of piers] Izvestia VNIIG, 1956, v. 55, Pp. 7-36. (in Russian)

Khidirov, S., Norkulov, B., Ishankulov, Z., Nurmatov, P., Gayur, A.: Linked pools culverts facilities. In: IOP Conference Series: Materials Science and Engineering (2020). https://doi.org/10.1088/1757-899X/883/1/012004.

Latyshenkov A.M. Primeneniye pirsovrastekateley na vodoboye plotin dlya likvidatsii sboynykh yavleniy v nizhnem b'yefe [The use of piers-spreaders on the water side of dams to eliminate malfunctioning phenomena in the downstream]. Proceedings of the VODGEO hydraulic laboratory. Moscow, 1957, issue 5. (in Russian)

Pravdivets YU.P. Sopryazheniye b'yefov poverkhnostnym rezhimom na mnogovodnykh rekakh [Conjugation of the pools by the surface regime on high-water rivers]. Energy construction. Moscow, No2, 1978. (in Russian)

Khidirov, S., Berdiev, M., Norkulov, B., Rakhimov, N., Raimova, I.: Management exploitation condition of Amu-Bukhara machine channel. In: E3S Web of Conferences (2019). https://doi.org/10.1051/e3sconf/20199705038.

Rayelan Abdul'kader. Sopryagayushchiye ustroystva nizhnego b'yefa vodosbrosov s noskom-ustupom [Connecting devices of the downstream of spillways with a ledge-ledge]. Diss. to apply for an account. degree of Candidate of Engineering Sciences. Moscow, 1993, 205 p. (in Russian)

Belyashevskiy N.N. Sopryazheniye b'yefov za vodoslivnymi plotinami s noskom [Connecting the headwaters behind the weir dams with the toe]. Kiev: Publishing house of the Academy of Sciences of the Ukrainian SSR, 1953, 207 p. (in Russian)

Belyashevskiy N.N., Pivovar N.G., Kalantyrenko N.I. Raschеty nizhnеgo bеfa za vodo-sbrosnymi sooruzhеniyami na nеskalnykh osnovaniyakh [Calculations of the tailwater behind the spillway structures on non-rocky foundations]. Kiev: 1973, 292 p. (in Russian)

Krutov, A., Norkulov, B., Artikbekova, F., Nurmatov, P.: Optimal location of an intake at a reservoir prone to salt diffusion. In: IOP Conference Series: Materials Science and Engineering (2020). https://doi.org/10.1088/1757-899X/869/7/072020.

Blazheyevskiy R. Kinematicheskiye i energeticheskiye kharakteristiki potoka na vodoboy s gasitelyami energii [Kinematic and energetic characteristics of the flow to the pond with energy absorbers]. Diss. to apply for an account. degree of Cand. those. sciences. MGMI, Moscow, 1978, 122 p. (in Russian)

Nikolayenko YU.I. K raschotu plana techeniya v nizhnem b'yefe mnogoprolotnykh vodoslivnykh plotin [To the calculation of the flow plan in the downstream of multi-span spillways]. In collection: Channel processes and hydraulics of structures, KGU, Kalinin, 1983, Pp. 39-46. (in Russian)



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.