A Study on Scour for Irrigation Canals in Egypt, “Case Study: The First Reach of El-ibrahimeya Canal”
American Journal of Engineering and Technology Management
Volume 1, Issue 4, December 2016, Pages: 65-77
Received: Oct. 22, 2016;
Accepted: Nov. 5, 2016;
Published: Jan. 20, 2017
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Mohammed Gamal Abdalla, Irrigation and Hydraulics Dept., Mansoura University, Mansoura, Egypt
A general scour was observed in the first reach of El-Ibrahimeya canal from its intake to km. 60. Also, a local scour was observed around the bridge piles across the canal at km. 23 which may lead to a failureto the bridge because the condition of interred pile length that equals one and half of the free pile length was not satisfied. Moreover, the designed level of the bridge equals (42.15) while the current bed level equals (40.40) that represent a seriousness for the bridge safety. The main objective of this research paper is to study the scour phenomenon generally along the reach under study and for the bridge, especially. A hydrographic survey for canal under study has been carried out. Also, the required data was obtained and analyzed, including discharge values, soil samples, and water levels at different sites along the canal. A one-dimensional mathematical model, namely (SOBEK-1D) was used to simulate the reach under study based on different Scenarios to determine the possible different solutions for the existing problem. A complete design process was carried out for the suggested protection layer related to km. 23 bridge against scour.
Mohammed Gamal Abdalla,
A Study on Scour for Irrigation Canals in Egypt, “Case Study: The First Reach of El-ibrahimeya Canal”, American Journal of Engineering and Technology Management.
Vol. 1, No. 4,
2016, pp. 65-77.
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