Keywords: hydraulic resistance, drainage, silting of pipes, slope of the pipeline, flow intensity, sediment, flow rate, dehumidification

// Мелиорация. – 2017. – №3(81).– С. 29—35

The article presents the results of laboratory investigation of siltation to discover how mechanical particles affects throughput ability of polyethylene corrugated pipes. Capacity of drainage systems depends on reliable operation of drains and collectors and throughput ability. Siltation in pipes caused by sand of 0.1-0.3 diameter decreases throughput ability by 27-70 %. The value of the eroding flow velocity necessary for self-cleaning of the corrugated pipes is obtained, which is considered as minimally non-insulating