2009 Fiscal Year Final Research Report

Development of estimation method for tank foundation stability due to soil liquefaction and sloshing of tank content.

Research Project

Project/Area Number	19560492
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Single-year Grants
Section	一般
Research Field	Geotechnical engineering
Research Institution	Nihon University (2008-2009) Tohoku University (2007)
Principal Investigator	SENTO Noriaki Nihon University, 工学部, 准教授 (40333835)
Research Collaborator	HIGUCHI Shunichi 大林組・技術研究所, 主査 (40450994)
Project Period (FY)	2007 – 2009
Keywords	動土質 / 液状化 / タンク / 基礎 / 沈下 / 有効応力解析 / 遠心載荷試験
Research Abstract	Settlement of tank foundation due to liquefaction is estimated by laboratory element test, centrifuge experiment and effective stress analysis. Settlement of the tank foundation is related with thickness of liquefied layer, maximum acceleration and duration of the earthquake motion. The magnitude of tank foundation settlement is also related with stress condition of soil below the foundation, especially increase of the coefficient of lateral pressure (K). Settlement is caused to some extent by sloshing compared with main earthquake motion.

(5 results)