Dams have one of the greatest significant roles in operating water resources. Seepage and slope stability failures cause completely failure of embankment dams. Dam disasters not only hazard community safety, they also can cost our economy millions of dollars in compensations. The study area is found in Oromia regional state between East Wollega and Bunno Bedele Zone. The dam is located on Dedessa River, tributary of Blue Nile River. Analysis of seepage quantity was done by Darcy’s phreatic line, and SEEP/W software model for both homogeneous and zoned dam. The expected quantity of seepage estimated with the SEEP/W software model analysis that includes foundation seepage is 6.6*10-6m3/sec. Slope stability study is to contribute to the safe and economic design of upstream and downstream slope of the dam. The factory of safety obtained by Morgenstern-Price method for end construction is (FOS=1.99), for steady state (FOS=2.03) and rapid drawdown (FOS=2.91). However, at the design document shell material hadn’t been designed properly. Finally the paper concluded that the likely corrective measures for seepage controls are impermeable blanket, grouting, and the downstream slope miscarriage by eliminating the pathetic zone and seal with like graded quantifiable, regular repairs and shield the downstream slope with grasses.
| Published in | Journal of Civil, Construction and Environmental Engineering (Volume 6, Issue 4) |
| DOI | 10.11648/j.jccee.20210604.11 |
| Page(s) | 104-109 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2021. Published by Science Publishing Group |
Limit Equilibrium Methods, Phreatic Line, Seep/w, Slop/w, Steady State
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| [6] | OWWDSE.( 2017). Arjo- dhidhessa design report. |
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| [9] | Omofunmi, O. E., Kolo, J. G., Oladipo, A. S., Diabana, P. D. and Ojo, A. S. (2017). A review on effects and control of seepage through earth-fill dam. |
| [10] | Saluja, I. S., Athar, M. and Ansari, S. A.(2018). Causes of Failure of Earthen Dams and suggested Remedial Measures. |
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APA Style
Ayansa Gamachu Aga. (2021). Embankment Dam Seepage and Slope Stability Analysis: The Case of Arjo-dedessa Dam, Ethiopia. Journal of Civil, Construction and Environmental Engineering, 6(4), 104-109. https://doi.org/10.11648/j.jccee.20210604.11
ACS Style
Ayansa Gamachu Aga. Embankment Dam Seepage and Slope Stability Analysis: The Case of Arjo-dedessa Dam, Ethiopia. J. Civ. Constr. Environ. Eng. 2021, 6(4), 104-109. doi: 10.11648/j.jccee.20210604.11
AMA Style
Ayansa Gamachu Aga. Embankment Dam Seepage and Slope Stability Analysis: The Case of Arjo-dedessa Dam, Ethiopia. J Civ Constr Environ Eng. 2021;6(4):104-109. doi: 10.11648/j.jccee.20210604.11
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Download@article{10.11648/j.jccee.20210604.11,
author = {Ayansa Gamachu Aga},
title = {Embankment Dam Seepage and Slope Stability Analysis: The Case of Arjo-dedessa Dam, Ethiopia},
journal = {Journal of Civil, Construction and Environmental Engineering},
volume = {6},
number = {4},
pages = {104-109},
doi = {10.11648/j.jccee.20210604.11},
url = {https://doi.org/10.11648/j.jccee.20210604.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jccee.20210604.11},
abstract = {Dams have one of the greatest significant roles in operating water resources. Seepage and slope stability failures cause completely failure of embankment dams. Dam disasters not only hazard community safety, they also can cost our economy millions of dollars in compensations. The study area is found in Oromia regional state between East Wollega and Bunno Bedele Zone. The dam is located on Dedessa River, tributary of Blue Nile River. Analysis of seepage quantity was done by Darcy’s phreatic line, and SEEP/W software model for both homogeneous and zoned dam. The expected quantity of seepage estimated with the SEEP/W software model analysis that includes foundation seepage is 6.6*10-6m3/sec. Slope stability study is to contribute to the safe and economic design of upstream and downstream slope of the dam. The factory of safety obtained by Morgenstern-Price method for end construction is (FOS=1.99), for steady state (FOS=2.03) and rapid drawdown (FOS=2.91). However, at the design document shell material hadn’t been designed properly. Finally the paper concluded that the likely corrective measures for seepage controls are impermeable blanket, grouting, and the downstream slope miscarriage by eliminating the pathetic zone and seal with like graded quantifiable, regular repairs and shield the downstream slope with grasses.},
year = {2021}
}
TY - JOUR T1 - Embankment Dam Seepage and Slope Stability Analysis: The Case of Arjo-dedessa Dam, Ethiopia AU - Ayansa Gamachu Aga Y1 - 2021/08/02 PY - 2021 N1 - https://doi.org/10.11648/j.jccee.20210604.11 DO - 10.11648/j.jccee.20210604.11 T2 - Journal of Civil, Construction and Environmental Engineering JF - Journal of Civil, Construction and Environmental Engineering JO - Journal of Civil, Construction and Environmental Engineering SP - 104 EP - 109 PB - Science Publishing Group SN - 2637-3890 UR - https://doi.org/10.11648/j.jccee.20210604.11 AB - Dams have one of the greatest significant roles in operating water resources. Seepage and slope stability failures cause completely failure of embankment dams. Dam disasters not only hazard community safety, they also can cost our economy millions of dollars in compensations. The study area is found in Oromia regional state between East Wollega and Bunno Bedele Zone. The dam is located on Dedessa River, tributary of Blue Nile River. Analysis of seepage quantity was done by Darcy’s phreatic line, and SEEP/W software model for both homogeneous and zoned dam. The expected quantity of seepage estimated with the SEEP/W software model analysis that includes foundation seepage is 6.6*10-6m3/sec. Slope stability study is to contribute to the safe and economic design of upstream and downstream slope of the dam. The factory of safety obtained by Morgenstern-Price method for end construction is (FOS=1.99), for steady state (FOS=2.03) and rapid drawdown (FOS=2.91). However, at the design document shell material hadn’t been designed properly. Finally the paper concluded that the likely corrective measures for seepage controls are impermeable blanket, grouting, and the downstream slope miscarriage by eliminating the pathetic zone and seal with like graded quantifiable, regular repairs and shield the downstream slope with grasses. VL - 6 IS - 4 ER -
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