Effect of canal width contraction on the hydraulic parameters and scour downstream water structures

Ashour, Mohamed; Aly, Tawab E.; Mostafa, M. F.

doi:10.1016/j.asej.2018.11.006

Cited by 4 publications

(1 citation statement)

References 4 publications

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“…Гидравлик энг қулай кесим мавжуд юза бирлигида максимал сув сарфини ўтказиш имкониятини беради. Натижада манбадан олинган сув каналлар орқали қисқа муддатларда экин майдонларига етиб боради [18].…”

Section: таҳлил натижалариunclassified

Economic Hydraulic Parameters for Concreting Canals

Rakhimov

Apakhujayeva

Otaxonov

et al. 2020

JSID

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Irrigation canals are of particular importance to provide water for irrigated areas. In recent years, the irrigation canals of Central Asia have been negatively affected by deformation phenomena. As a result, their hydraulic parameters changed and their throughput decreased. The results of the studies in the field of the deformations and designing open irrigation canals show that a lot of work has been completed. Ensuring the static and dynamic stability and increasing the efficiency of the canals require to cover the channels with concrete cladding. The need to cover the canals with concrete cladding raises the problem of the high cost of these works. The optimal solution to the problem is to reduce concrete consumption. The article proposes a method for designing a canal from the condition of the hydraulically most advantageous section. According to the proposed method, the consumption of concrete mixture is reduced by 36% and the increase in the dynamic stability of the canal (when assessing the nanotransport ability of the canal) is increased by 26%. The research results are confirmed by the formulas used in practice.

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Section: таҳлил натижалариunclassified

Economic Hydraulic Parameters for Concreting Canals

Rakhimov

Apakhujayeva

Otaxonov

et al. 2020

JSID

View full text Add to dashboard Cite

show abstract

Study of hydraulic parameters for concreting channels

Fatxulloyev

Allayorov

Оtakhonov

2020

IOP Conf. Ser.: Earth Environ. Sci.

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Irrigation channels plays particular importance role to provide water for irrigated areas. In recent years, the irrigation channels of Central Asia have been negatively affected by deformation phenomena. As a result, their hydraulic parameters changed and their throughput decreased. The results of recent studies in the field of the phenomena of deformations in open and in the planning of irrigation channels show that a lot of work has been completed. Ensuring the static and dynamic stability of the channels, increasing the efficiency of the channels currently require to cover the channels with concrete cladding. A high cost of covering the channels with concrete cladding brings reveals the problems in these works. The best solution is to reduce concrete consumption. The article proposes a method for projecting a concrete channel from the condition of a hydraulically most advantageous section. According to the proposed method, the consumption of concrete mixture is reduced by 36% and increased the dynamic stability of the channel (when assessing the nanotransport ability of the channel) is increased by 26%. The rehabilitee of research results are confirmed by the formulas used in practice.

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Dynamics of hydraulic resistance in the zone of constraint of the riverbed

Maalem

Begmatov

Khasanov

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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The article is devoted to the analysis of the dynamics of the morphometric parameters of the river channel and the hydraulic parameters of the flow under constrained conditions. The Kipchak hydraulic track located in the lower reaches of the Amu Darya River, constrained by the pontoon bridge, is characterized by intensive channel processes. The dynamics of the hydraulic resistance of the channel depending on the flow during the periods of observation in a confined section of the river has a wide range of 0.045 to 0.068, with a change in the roughness of the channel within 0.0195 to 0.065. The calculated values of the flow rates, taking into account the inhibitory effect of the river banks, gave a satisfactory agreement with the measured ones, the hydraulic resistance of the channel, depending on the value of this parameter, varied within 0.045 to 0.068 with the dynamics of the Chezy coefficient from 27 to 67 m0.5 / s

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Effect of canal width contraction on the hydraulic parameters and scour downstream water structures

Cited by 4 publications

References 4 publications

Economic Hydraulic Parameters for Concreting Canals

Economic Hydraulic Parameters for Concreting Canals

Study of hydraulic parameters for concreting channels

Dynamics of hydraulic resistance in the zone of constraint of the riverbed

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