Seiling and cleaning of channels

• Published in: IOP conference series. Materials Science and Engineering Vol. 883; no. 1; pp. 12062 - 12066
• Main Authors: Lee, A, Usmonov, T, Norov, B
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.07.2020
• Subjects: Bank erosion; Channels; Irrigation; Irrigation canals; Landslides; Mechanical properties; Meltwater; Mountains; Physical properties; Reclamation; Slopes; Soil mechanics; Soil properties; Soils
• ISSN: 1757-8981; 1757-899X
• DOI: 10.1088/1757-899X/883/1/012062

This article discusses some theoretical assumptions about the causes and factors affecting the siltation (deposits) of channels of reclamation systems. It has been established that the siltation of channels is mainly caused by low speeds of the water moving in them and it occurs due to the destruction of slopes and accumulation of soil deposits at the bottom of the channel. An important role in the siltation of channels is played by the physical and mechanical properties of the soil. The intensity of the siltation of channels in the early years of their construction mainly occurs due to the peeling of the slopes of the soil. In irrigation canals, the intensity of siltation depends on the amount of sediment in the source of irrigation, which is meltwater from the slopes of the mountains bringing a huge amount of sediment. Sludges of intra-systemic origin are mainly obtained as a result of erosion and landslides of canal banks. During the exploitation of the drainage network, repair and restoration work is mandatory, as there is a change in the cross-section of the channels, which leads to a decrease in their parameters. An analysis of a theoretical study of the siltation of channels of reclamation systems using long-term materials from previous studies is carried out.