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ID 11571
Eprint ID
11571
フルテキストURL
著者
Magda Waldemar Marine Civil Engineering Department, Faculty of Environmental Engineering, Technical University of Gdansk
前野 詩朗 岡山大学
名合 宏之 岡山大学
抄録
A dynamic response of a submarine pipeline buried in sandy seabed sediments to water loading generated by harmonically oscillating water-table vertical movements is examined in the present report experimentally and numerically. The aim of small-scale laboratory experiments was: (1) to record time-histories of pipeline vertical displacements, and (2) to observe a shape of slip surface of an overburden sand body involved in breakout together with the pipeline. A parametric study was carried out in order to investigate the influence of two meaningful factors, that is the depth of burial and the specific gravity of pipeline, on a gradual upward displacement of the pipeline. Based on a numerical finite-element 2D-analysis of the hydrodynamic pore pressure and effective stresses oscillations in the pipeline vicinity, an analysis of the pipeline stability potential is presented, in which all the experimental cases tested are verified. All important component forces (e.g., hydrodynamic uplift force) associated with floatation phenomenon of the buried submarine pipeline are considered and quantified.
キーワード
submarine pipeline
surface waves
pore pressure
floatation
stability
発行日
2000-02-29
出版物タイトル
岡山大学環境理工学部研究報告
出版物タイトル(別表記)
Journal of the Faculty of Environmental Science and Technology, Okayama University
5巻
1号
出版者
岡山大学環境理工学部
出版者(別表記)
Faculty of Environmental Science and Technology, Okayama University
開始ページ
81
終了ページ
98
ISSN
1341-9099
NCID
AN10529213
資料タイプ
紀要論文
関連URL
http://www.okayama-u.ac.jp/user/est/homeJapan.html
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
fest