EFFECT OF ADDING DOWNSTREAM BERMS ON SEISMIC MITIGATION OF EMBANKMENTS | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 3, Volume 42, No 2, March and April 2014, Page 317-324 PDF (202.08 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2014.114732 | ||||
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| Authors | ||||
| Kamal Mohamed Hafez Ismail Ibrahim1; Safia Mohamed Khodary2 | ||||
| 1Assoc. Prof., Civil Engineering Dep., Suez Canal University, Egypt | ||||
| 2Post Graduate Student, Aswan University, Egypt | ||||
| Abstract | ||||
| This paper investigates the performance of embankments subjected to seismic loading. Finite element analysis using Plaxis dynamic software program was carried out to evaluate the crest settlement of a dense sand embankment on rock foundation before and after adding downstream berms. Undraind analysis is carried out using Mohr-Coulomb criteria. The numerical intensities are close to previous studies and the results show that the best embankment performance is when the berm is added in downstream at height equals to half of the embankment total height. The downstream berm slope has no significant effect on crest settlement for slopes less than 1.5H: 1V. It is also found that when adding two downstream berms, the best mitigation is obtained when the top < br />berm is at two third the embankment and the bottom berm is added at one third the total embankment height. | ||||
| Keywords | ||||
| Seismic mitigation; Downstream Berms; Finite Element; Crest settlement | ||||
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