Dynamic Analysis of Middle Awash Multi-purpose Dam
| dc.contributor.advisor | Kemal, Asie(PhD) | |
| dc.contributor.author | Mulat, Yared | |
| dc.date.accessioned | 2018-07-26T12:07:54Z | |
| dc.date.accessioned | 2023-11-11T08:32:12Z | |
| dc.date.available | 2018-07-26T12:07:54Z | |
| dc.date.available | 2023-11-11T08:32:12Z | |
| dc.date.issued | 2015 | |
| dc.description.abstract | In this dynamic analysis research, Middle Awash high dam which is located in Ethiopian rift valley seismic zone is analyzed for pre and post earthquake stability and permanent deformations due to earthquake loads. The dynamic analysis is done adopting three elsewhere recorded earthquake time histories, which have different period and duration. Applying these seismic shocks and using the Newmark deformation method, it is found that the induced deformations do not require additional extension of dam or cumber height. The upstream and downstream slopes showed sufficient performance against sliding. The upstream section steepening is found to be more economical, yet achieving the minimum required factors of safety for static and post earthquake sliding failure. The thick alluvium foundation of the dam is found to liquefy immediately after the design base earthquake started. The pseudo-static seismic analysis recommends uneconomical dam section modification. The Finite Element and Limit Equilibrium Methods shown to be conservative in calculating sliding factor of safety for downstream and upstream slopes, respectively. Key words: Maximum credible earthquake, Design base earthquake, Finite element method, Limit equilibrium method, Permanent deformation and Liquefaction. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/10121 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Maximum credible earthquake | en_US |
| dc.subject | Design base earthquake | en_US |
| dc.subject | Finite element method | en_US |
| dc.subject | Limit equilibrium method | en_US |
| dc.subject | Permanent deformation and Liquefaction | en_US |
| dc.title | Dynamic Analysis of Middle Awash Multi-purpose Dam | en_US |
| dc.type | Thesis | en_US |