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Improvement on seismic behavior of rubble-mound breakwaters constructed on the liquefiable seabed

Credit to Download: 1 | Page Numbers 13 | Abstract Views: 60
Year: 2019
COI code: GEOTECO01_008
Paper Language: English

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Authors Improvement on seismic behavior of rubble-mound breakwaters constructed on the liquefiable seabed

  Amin Enayati - MSc. Student, School of Civil Engineering, College of Engineerig, University of Tehran, Tehran, Iran
  Ali Fakher - School of Civil Engineering, College of Engineerig, University of Tehran, Tehran, Iran
  Ali kavand - School of Civil Engineering, College of Engineerig ,University of Tehran, Tehran, Iran

Abstract:

Breakwaters are built to create a safe area against the sea waves. Rubble-mound breakwaters are one of the most commonly used breakwaters if rock resources are available. The coastline in many parts of the world, including Iran, is composed of the loose granularwhich is prone to liquefaction. Given thatit is difficult to replace or improve seabed soil,an accurate understanding of the liquefiable bed and its impact on the performance of structures built on such bedding is important. The purpose of the present research is to develop an appropriate numerical model to evaluate the seismic behavior of rubble-mound breakwaters due to the liquefaction in the bed. Forthis purpose, it has been attempted to develop a numerical model by using FLAC software and Finn behavior model for liquefiable soil. Then, the behavior of a real breakwater on the liquefiable bed was investigated under a real earthquake record. Due to the high cost and difficulty of replacing or removing soil in deep water in order to decrease liquefaction damage, other solutions were investigatedTwo. simple methods were evaluated to decrease the deformation of rubble-mound breakwaters constructed on liquefiable seabed. It was observed that the addition of berm could decrease the settlement of the crest. Also, by decreasing the slope of the breakwaters, the crest settlement decreased.

Keywords:

Rubble-mound breakwaters, liquefaction, berm, numerical modeling, Finn model.

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COI code: GEOTECO01_008

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Enayati, Amin; Ali Fakher & Ali kavand, 2019, Improvement on seismic behavior of rubble-mound breakwaters constructed on the liquefiable seabed, International Conference on Soil and Soil Engineering, تهران, انجمن مديريت و مهندسي توسعه فناوري, https://www.civilica.com/Paper-GEOTECO01-GEOTECO01_008.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Enayati, Amin; Ali Fakher & Ali kavand, 2019)
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Type: state university
Paper No.: 55358
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