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Title

Anodic Protection Response to Pile Driving for Fix Steel Jackets

Year: 1385
COI: ICOPMAS07_031
Language: EnglishView: 2,479
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Authors

Seyed Saleh Hosseini Yazdi - Msc Student in Mechanical Engineering, University of Tehran
Mohmmad Hassan Hedayati - Msc in Structural Engineering, Petroiran Company Ltd

Abstract:

Offshore structures work in sever harsh environmental conditions which lead to high corrosion rates. To protect such these structures, various methods have been used. For example, for atmospheric and splash zones, proper covering protection systems have been employed. In Sub Sea zone due to environmental characteristics which is a solution of various salts, anodic protection system is practiced. The anodic protection system consists of a pipe or a tubular which is covered by a sacrificial substance. The sacrificial element due to difference between its natural galvanic potentials and main structure corrodes; therefore, it protects the main structure of corrosion and the sea water is the electrolyte. The tubular is the structural element which bears loads and connects the anode, structurally and electrically to the main structure. In normal conditions, the tubular only bears the sacrificial substance weight which when the offshore structure is in service a portion of the weight is neutralized by buoyancy. But in pile driving stage, the hammer impacts induce a series of impulses which applies a great amount of acceleration (force). In general practices the common way to design anodic system and predict its behavior under such this condition, is using relative codes and standards and the equations and assumptions which are brought in them. In this study a typical anodic system which was used in South pars gas field development phases 6, 7&8 is considered. The anode responses to pile driving impulses are modeled through proposed methods in codes and standards along with making an analytic model and FEA analysis, which the effect of sea water compensation is considered (Fig 1a, 1b and 2).

Paper COI Code

This Paper COI Code is ICOPMAS07_031. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/9135/

How to Cite to This Paper:

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Hosseini Yazdi, Seyed Saleh and Hedayati, Mohmmad Hassan,1385,Anodic Protection Response to Pile Driving for Fix Steel Jackets,7th International Conference on Coasts, Ports and Marine Structures,Tehran,https://civilica.com/doc/9135

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Type of center: دانشگاه دولتی
Paper count: 63,668
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