DESIGN OF DRAINAGE SYSTEMS FOR IRRIGATION PROJECTS IN SUDAN

Adil Mohamed Elkhidir, Einas Elbashir Ali

Abstract


In this research paper the Empirical Drainage Formula (Q= CAn) have been developed for 26 stations in Sudan using the rainfall characteristics for different regions. In general, the developed Project Drainage Formula (Q= CAn) will be used to design hydraulic structures of the drainage system such as culverts, siphons or drains for the considered
irrigation project.
Balance equation of drainage system for the considered irrigation project has been used to estimate the values of runoff factor ‘C’ and the exponent ‘n’ respectively at different return periods (2, 5, 10 and 20 years) .The balance equation includes the design maximum 2-day rainfall, soil moisture deficit and 2-day crop Evapotranspiration . The value of exponent “n” has been found as 1.0 for all stations with different values of “C” depend on the location of each station.
Isohyetal maps for values of C at different return periods (2, 5, 10 and 20 years) have been developed for Sudan. Based on the location of proposed irrigation project region the appropriate value of C will be selected from the Isohyetal maps.

Keywords


Drainage; runoff factor; Soil Moisture Deficit; Crop Evapotranspiration; Isohyetal map

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References


. Anon., 2017. The World Bank Climate Change

Knowledge Portal. [Online]

. Available at:

http://sdwebx.worldbank.org/climateportal/index.c

fm?page=country_historical_climate&ThisCCode

=SDN#

. https://study.com/academy/lesson/what-is-runoffdefinition-effects-quiz.html, s.l.: s.n.

. Anon., n.d. Watershed Basics :

. Definition,Geology And Hydrology, Traverse City:

The Watershed Center Grand Traverse Bay.

. Anon, n., n.d. watershed Basis, The Watershed

Center Grand Traverse Bay: Definition,Geology

And Hydrology.

. Brown, P. W., n.d. AZMET

EVAPOTRANSPIRATION ESTIMATES: A

TOOL FOR, s.l.: s.n.

. C. Brouwer,A. Goffeau,M. Heibloem, 1985.

Irrigation Water Management: Training Manual

No. 1 - Introduction to Irrigation. - ed.

. Elamin, A. W. M., 2013. AGRICULTURAL

MECHANIZATION and INFORMATION

TECHNOLOGIES, s.l.: s.n.

. Erickson, 2013. "Optimizing Stormwater

Treatment Practices: A Handbook of Assessment

and Maintenance, s.l.: s.n.

. Feldman, A. D., 2000. Hydrologic Modeling

System HEC-HMS Technical Reference Manual,

Washington: U.S. Army Corps of Engineers.

. Gibb, S. A. & Macdonald , S. M., 1987. Blue Nile

Waters Study. Khartoum: Ministry of Irrigation and

Hydro-Electric Energy.

. Ibraim, A. M., 2017. Development of Drainage

Formulae for the Design Of Drainage Systems of

Irrigation Projects in Sudan, Khartoum: University

of Khartoum.

. Ling Zhang & Eric Guilbert, 2013. Automatic

drainage pattern recognition in river networks.

s.l.:s.n.

. Ritzema, H., 2014. Subsurface Drainage. , s.l.: s.n.

. Service, U. S. S. C., 1959. SCS National

engineering handbook (Volume 7). U.N: s.n.


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