Dam Safety Monitoring of Gilgel Gibe III Hydropower Dam Project
| dc.contributor.advisor | Kemal, Asie(PhD) | |
| dc.contributor.author | Haftu, Selamawitu | |
| dc.date.accessioned | 2018-07-24T06:56:31Z | |
| dc.date.accessioned | 2023-11-11T08:32:12Z | |
| dc.date.available | 2018-07-24T06:56:31Z | |
| dc.date.available | 2023-11-11T08:32:12Z | |
| dc.date.issued | 2017-06 | |
| dc.description.abstract | Dam safety monitoring tool determines a functional performance of dams with an extended service time. One of the main dam safety monitoring tools is seepage monitoring system. This research presents assessment of dam safety monitoring technique using seepage observed at Gilgel Gibe III hydropower project the highest RCC dam in the world. SEEP/W a component of GEO-STUDIO 2007 have been used to do the seepage analysis. A number of hydraulic conductivities are used to find out different trial seepage values. Trial seepages were produced for different reservoir water level for trial hydraulic conductivity from SEEP/W model. These calculated seepage values together with the measured seepage from the dam site are an input for Multiple Linear Regression Model (MLR). Then, the MLR coefficients were calculated by optimizing the seep/w results with the measured seepages for a given water level in the dam. The model result concides with the measured result with Mean error of -4.020x10-2m3/s, mean absolute error of 5.65x10-3 m3/s RMSE of 7.18x10-3 m3/s and ���� value of 0.91. The RMSE, Mean error and Mean absolute error being closer to zero indicate the quality of model to represent acctual condution. While the ���� value being the 91 % shows the better quality of the representative model. Then a model is developed and accurately predicts the expected seepage with different specific reservoir level. Using the model, safe expected seepage is produced for the safe future monitoring of the dam. By using these calibrated MLR coefficient and seep/w model seepage a monitoring curve is developed. The curve obtained can be used to monitor the dam safety against seepage for future operation. Key words Gilgel Gibe III dam, SEEP/W, MRL, Reservoir water level, Hydraulic conductivity. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/9912 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa | en_US |
| dc.subject | Gilgel Gibe III dam | en_US |
| dc.subject | SEEP/W | en_US |
| dc.subject | MRL | en_US |
| dc.subject | Reservoir water level | en_US |
| dc.subject | Hydraulic conductivity | en_US |
| dc.title | Dam Safety Monitoring of Gilgel Gibe III Hydropower Dam Project | en_US |
| dc.type | Thesis | en_US |