Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : seepage analysis

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

Seepage Analysis through an Earth Dam (KHASA-CHAI Dam) as a Case Study

A. A. Abdulsattar; M.R. Faris; A.J. Zedan

Engineering and Technology Journal, 2017, Volume 35, Issue 2, Pages 172-181

In this research KHASA-CHAI Dam that consists of zoned embankment was investigated by using finite element method. The finite element computer software SEEP/W was used. Experimental works were done to the soils that enters in the construction of the dam to obtain the different parameters that SEEP/W software need in order to complete the analysis. The dam at its actual design was investigated by considering the water in the reservoir to be at maximum, minimum and half filled with water. Then the control of seepage and exit gradient through the dam were investigated by studying the effect of changes in the construction of the dam. It was concluded that the core in the dam has an important effect on decreasing the seepage quantity through the dam body. The presence of filters in the dam has small effect on increasing seepage quantity, but they have great effect on decreasing exit gradient.