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Private solutions to design an innovative engineering structure for efficient debris flow control

Gavardashvili Givi, Kukhalashvili Eduard, Iremashvili Inga

Budownictwo o Zoptymalizowanym Potencjale Energetycznym

2022

Vol. 11

171--180

There are hardly any sections in a debris flow channel, where flow movement, except for exceptions, would have a constant hydraulic regime and typical parameters. Therefore, in order to select regulating measures, the urgent means of assessment of the flow regime to totally cover its anomaly is needed. The solution of this question is associated with the full compatibility of laws with soil mechanics and hydraulics. Recently, the engineering problems related to debris flow, based on various considerations, have been realized by integrating the obtained differential equations. Especially important are the possibilities of a debris flow moving regime in prismatic beds described by the system of differential equations of various modifications. If rheological properties are neglected in the above equations, they are completely transformed into differential equations of non-uniform motion of Newtonian fluids. By considering the above-mentioned, the paper gives the calculation methods and practical example of designing an innovative debris flow control barrage, which was realized in the bed of the Mletis Khevi river gorge.

Dimensionless equation for side-channel weirs

Kotowski A.

Archives of Hydro-Engineering and Environmental Mechanics

2001

Vol. 48, nr 1

97-113

Using the principle of conservation of momentum, an analysis of the one-dimensional description of flows of Newtonian fluids in prismatic channels with side weirs was carried out. A new form of the equation of motion - with a corrected mass decrement term and added momentum-variation term - has been derived from the principle of conservation of momentum. Following examination of relevant coefficients, the dimensionless form of the modified applies, to the hydraulic design of a side weir with a high overfall crest and a throttling pipe, used in sewer systems.