Improvement of calculation technique for phased wash of sluiceways

Surface mining of river bed placers adversely affects the regime of the rivers and induces their pollution with suspended solids. One of the sources of water body pollution with suspended solids is sluiceways. Prevention of such pollution is possible by means of phased wash which means phased flow augmentation in sluiceways. This approach enables standard water quality in terms of suspended solids in monitoring section owing to mixture of river and sluiceway flows. The existing calculation techniques for phased wash have some limitations and urgently need improvement with regard to pollution control regulations. This research is based on the theoretical analysis with, partly, numerical modeling. The test object is sluiceways with trapezoidal cross-section made in noncohesive soil. In Python 3.8 environment, we calculate the phased wash mode for 11 sluiceways (including real-time) within a wide variation range of input parameters. The phased wash calculation procedure for sluiceways is improved. As against the previously known methods, the phased wash mode parameters of each specific sluiceway are optimized at the sluiceway design stage. The research results are introduced in elaboration of project documentation.

Keywords: river pollution, phased wash, sluiceway, suspended solids, noncohesive soil, water flow rate, average velocity.
For citation:

Kosarev S. G., Zaslonovskiy V. N., Bosov M. A. Improvement of calculation technique for phased wash of sluiceways. MIAB. Mining Inf. Anal. Bull. 2021;(9):94-102. [In Russ]. DOI: 10.25018/0236_1493_2021_9_0_94.

Issue number: 9
Year: 2021
Page number: 94-102
ISBN: 0236-1493
UDK: 622.015.4: 556.535.8
DOI: 10.25018/0236_1493_2021_9_0_94
Article receipt date: 12.04.2021
Date of review receipt: 28.04.2021
Date of the editorial board′s decision on the article′s publishing: 10.08.2021
About authors:

S.G. Kosarev1,2, Cand. Sci. (Eng.), Assistant Professor, Professor, e-mail:,
V.N. Zaslonovskiy1,2, Dr. Sci. (Eng.), Professor,
M.A. Bosov1,2, Cand. Sci. (Eng.), Assistant Professor,
1 Transbaikal State University, 672039, Chita, Russia,
2 Russian Research Institute for Integrated Use and Protection of Water Resources, Ekaterinburg, Russia.


For contacts:

S.G. Kosarev, e-mail:


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