Hydraulic Analysis of a Sloped Trapezoidal Non-cavity Drain Improved by a Pipe Drainage

Shtykov, Valeriy; Пономарев, А Б; Yanko, Juryi

doi:10.1016/j.trpro.2021.02.129

Cited by 4 publications

(3 citation statements)

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“…In this case, the depth of water at the source of a cavityless collector is calculated by the formula [15]:…”

Section: Resultsmentioning

confidence: 99%

“…width of the cavityless collector; K1, F1, N1 and M are the total complex parameters, the formulas for calculating which are given in [15].…”

Section: Resultsmentioning

confidence: 99%

“…As a result, according to formula (3), we get hH = 0.3 m. Accordingly, the mark of the maximum water level in the cavityless collector is less than the mark of its edge by 0.9 m, that is, the difference in marks is more than 0.5 m. If the drainage capacity of the cavityless collector turns out to be insufficient, it can be increased by introducing a drainage pipe of the appropriate size into the collector. The hydraulic calculation technique described in [15] makes it possible to do this.…”

Section: Resultsmentioning

confidence: 99%

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Expansion of pipeless drainage functions for draining poorly permeable soils

Shtykov,

Yanko,

Kantsiber

et al. 2023

E3S Web Conf.

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Due to climate change, in the next 30-50 years, an increase in precipitation during the growing season is predicted in the Non-Chernozem zone of Russia. However, even now, traditional methods of draining poorly permeable soils in a number of cases have proved to be ineffective due to the insufficiency of operational and capital measures to accelerate the removal of surface water and the weak hydraulic connection between the arable layer and drains. The experience of operation of drainage systems in the Nonchernozem zone of Russia has shown that at large distances between channels, the removal of surface runoff is difficult. A rational solution is to reduce the distances between the conductive channels. In this case, instead of open collectors, we propose to use cavityless collectors for drainage, which do not interfere with the movement of heavy agricultural machinery. A complete analysis of the functioning of cavityless collectors has been carried out. In the part of hydrology, accounting for the increase in precipitation is discussed and a method is given for calculating the maximum average daily module of drainage flow for the early spring and summer-autumn periods. A geotechnical calculation of the settlement during the passage of a heavy general-purpose tractor of the 5th traction class K-744R1 (Kirovets) was performed. It is shown that under the design conditions, the settlements will be about 1 cm. An example of a hydraulic calculation of the reservoir with the calculation of the initial and maximum depth of the filtration flow in it is given. Hydraulic calculation is carried out according to a proven method, the theoretical foundations of which were developed by the authors in previously published articles. An important feature is that all possible filtration modes are taken into account in the hydraulic calculation: laminar, transitional and turbulent.

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“…In this case, the depth of water at the source of a cavityless collector is calculated by the formula [15]:…”

Section: Resultsmentioning

confidence: 99%

“…width of the cavityless collector; K1, F1, N1 and M are the total complex parameters, the formulas for calculating which are given in [15].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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