Back
 JWARP  Vol.8 No.12 , November 2016
Control of Seepage through Earth Dams Based on Pervious Foundation Using Toe Drainage Systems
Abstract: Many dangerous effects arise from seepage through earth dams based on pervious layer. Therefore, the dam embankment must be provided with seepage control measures to avoid such effects. In the present work, different control methods were used such as flat slopes, toe drainage systems, and a catch drain in the tail water. The hydraulic performance of each control measure was evaluated using the analytical solutions, previously developed, to estimate the seepage quantity (q), the height of seepage surface (h3), and the coordinates of the free surface (hx). Study was conducted on a physical model for a dam embankment having a top width (b) = 10.0 meter, height (Hd) = 30.0 meter, and slope factor (m) = 1.5. The obtained results were analyzed and presented in dimensionless charts. Results showed that, the used control measures possess a great effect on the characteristics of seepage through earth dams based on pervious foundations. A comparative study was conducted between the studied toe drainage systems to enable the designers the better choice for design purposes.
Cite this paper: Aboelela, M. (2016) Control of Seepage through Earth Dams Based on Pervious Foundation Using Toe Drainage Systems. Journal of Water Resource and Protection, 8, 1158-1174. doi: 10.4236/jwarp.2016.812090.
References

[1]   Sasi, T.S. (2015) Evaluation of Control Measures for Seepage through Earth Dams based on Impervious Foundation. M.Sc. Thesis, Faculty of Engineering, Al-Mergib University, Libya.

[2]   Grishin, M.M. (1982) Hydraulic Structures. Translated from Russian, Mirpublishers, Moscow.

[3]   Nedrigy, V.P. (1959) Calculation of Seepage through Hydraulic Structures. Gostroyzdat, Moscow.

[4]   Nedrigy, V.P. (1969) Calculation of Seepage through Earth Dams with Toe Drains. Gostroyzdat, Moscow.

[5]   Nedrigy, V.P. (1983) Hydraulic Structures. Gostroyzdat, Moscow.

[6]   U. S. Army Corps of Engineers (1986) Seepage Analysis and Control for Dam. Washington, DC.

[7]   United States Department of the Interior, Bureau of Reclamation (2010) Design of Small Dams. A Water Resources Technical Publication, Second Indian Reprint, SBS Publishers & Distributors Pvt. Ltd., New Delhi.

[8]   Harr, M.E. (1962) Groundwater and Seepage. McGraw-Hill Book Company, New York.

[9]   Harr, M.E. (1977) Mechanics of Particulate Media. McGraw-Hill Book Company, New York.

 
 
Top