Author(s): S. Mansour; S. Abdel-Fattah; M. B. A. Saad
Linked Author(s): M.B.A. Saad
Keywords: No Keywords
Abstract: El Nasr irrigation canal takes its water from El Nobaria canal and irrigates an area of about 40,000 Hectares. The canal has a right angle intake, which suffers from a sedimentation problem. A physical model of an undistorted scale 1:25 was constructed at the Hydraulics Research Institute, Egypt, to test the validity of the sediment trap. The sediment transport was measured in the field using a mechanical sampler called “Delft-Nile Sampler”. According to the results of the field measurements, a design of the sediment trap was proposed and tested in the model. Sediment transport was studied using a physical model by applying the flow velocity measurements in some of sediment transport prediction equations. The behaviour of the sediment trap, which is located in the Nobaria canal (200m upstream of El Nasr intake structure), was tested using light plastic material. These model measurements were also used to check the approach flow pattern in addition to track the surface current by floats and dye. The tests have shown that the use of a sediment trap will minimise the sediment entering El Nasr canal and thus will protect the mechanical parts of the pumping station.
Year: 2001