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Investigation Phreatic Line Slope in Irrigation Channels Embankment of Mianab Irrigation and Drainage Network Using SEEP/W Model | ||
Journal of Water Science & Engineering | ||
مقاله 6، دوره 3، شماره 7، شهریور 2013، صفحه 85-97 اصل مقاله (916.21 K) | ||
نوع مقاله: Original Article | ||
نویسندگان | ||
Farrokh Falahat1؛ Hossein Fathian* 2؛ Behrooz Dahanzadeh3 | ||
1Department of Irrigation and Drainage Branch Branch, Islamic Azad University, Saveh, Iran. | ||
2Department of Water Resources, Ahvaz, Islamic Azad University, Ahvaz, Iran. | ||
3Department of Water Sciences, Islamic Azad University, shoushtar Branch, Iran. | ||
چکیده | ||
One of the problems of existing irrigation networks is seepage phenomena. Seepage problem and its control in irrigation channels is one of the most important issues in the design, construction, maintenance and operation of these channels. In this study, simulated the rate of seepage and phreatic lines in the Mianab irrigation and drainage channels located in the Karun basin using mathematical two dimensional SEEP/W model. Results show that when flow depth in main channel be equal or more than 1.69 meters, the phreatic line intersects the downstream walls of embankment and exist the probability of piping phenomena. By increasing flow depth in main channels, increase phreatic line slop. Hydraulic conductivity coefficient don’t influence on phreatic line and only water surface elevation in main channel influence on phreatic line. | ||
کلیدواژهها | ||
Seepage؛ Phreatic line؛ Piping phenomena؛ Irrigation channel embankment and Hydraulic conductivity coefficient | ||
مراجع | ||
حیدریزاده، م .) 1369 (. بررسی تلفات نشت از کانالهای آبیاری. پایاننامه کارشناسیارشد، دانشکده کشاورزی، دانشگاه Ji, C.N., Wang, Z.Y. and Shi, Y. (2005). Application of modified EP method in steady seepage analysis. Computers and Geotechnics, 32(1), pp: 27-35. | ||
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