Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : Slope Stability

Slope Stability Analysis of Haditha Dam after Earthquake using Geo-Studio Software

Mohammed K. Malik; Ibtisam R. Karim

Engineering and Technology Journal, 2021, Volume 39, Issue 4A, Pages 599-613
DOI: 10.30684/etj.v39i4A.1909

The current study is designed to analyze theslope stability of Haditha damwhich is an earth-fill dam constructed on the Euphrates River in the middle-west of Iraq. Finite element modeling was used in the present study to analyze the combined seepage and post-earthquake slope stability of Haditha earth dam. The maximum water level of a steady seepage case was considered to evaluate seepage. - Three different water levels (maximum, normal, and minimum) were applied, and nine different equilibrium slope stability limits were used to analyze the upstream and downstream slopes of the dam with three horizontal maximum accelerations.The input data given to the software are the dam geometry and its material properties with the earthquake records in the year2019.The dam was investigated by considering the water in the reservoir to be at maximum, minimum and normal water levels in its actual design. It was concluded that the dam is on the safe side in terms of stability even though the change in the earthquake's conditions in Iraq.

Safety Assessment of Hadithah Dam Under Extreme Operations and Collapsible Foundation Challenges

Imad H. Obead; Hassan A. Omran; Mohammed Y. Fattah

Engineering and Technology Journal, 2020, Volume 38, Issue 12, Pages 1771-1782
DOI: 10.30684/etj.v38i12A.611

The present study involves a coherence steps to re-analyze the scenario of presence of collapsible gypseous layers in the foundation of Hadithah dam under extreme operating conditions. The motivation for such analysis was to explore the problem of construction and operation of large earth dams on collapsible soils if similar cases exist in Iraq. This study was carried out to evaluate the adequacy of the diaphragm wall and the safety level of the side slopes during the drawdown and rise period. The results were verified by the in situ design that confirmed the validity of the analysis