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ID 11528
JaLCDOI
Sort Key
8
タイトル(別表記)
Damage factors analysis for small embankment dams due to the Hyogoken-Nambu earthquake special to Hokudan Town
フルテキストURL
著者
藤井 弘章 岡山大学
国政 華奈 岡山大学
難波 明代 岡山大学
横溝 隆之 岡山大学
西村 伸一 岡山大学 Kaken ID researchmap
島田 清 元岡山大学環境理工学部環境管理工学科(現東京農工大学)
堀 俊男 (株)ウエスコ
西山 竜朗 岡山大学
脇谷 芳招 岡山大学
抄録
This study was performed to clarify which factors affected damage to take-ike (small embankment dams for irrigation in Japanese) of Hokudan Town on Awaji Island in western Japan due to Hyogoken-Nambu earthquake. Multivariate and ordinary statistical analysis were carried out using documentary data (181 damaged and 328 undamaged dams), and ordinary one was done for the results investigated in situ. The model for the multivariate analysis was created with 13 items and 94 categories for 4 groups (Location, Geology Structure, and History of Dam). As a result, the factors causing to damage for dam are (1) the nearest fault (Nojima, Mizukoshi and D2), (2) embankment volume (the larger the more), (3) angle of crest axis to epicenter (diagonal and normal), (4) distance to the nearest fault (less than 500 m), (5) distance to the epicenter (8 to 14 km which almost agree to the location of seismic intensity 7 JMA), (6) play view of dam axis (3 or 4 axes), (7) angle of crest axis to nearest fault (diagonal and normal), (8) elevation of dam site (over 100 m), (9) surface geology of dam site (non-cohesive soil), (10) era of construction (prior to 1891), and (11) soil properties of embankment (constructed of sand, smaller penetration resistance).
キーワード
Earth dam
earthquake damage
site investigation
statistical analysis
case study
出版物タイトル
岡山大学環境理工学部研究報告
発行日
2002-03-22
7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
55
終了ページ
74
ISSN
1341-9099
NCID
AN10529213
資料タイプ
紀要論文
OAI-PMH Set
岡山大学
言語
Japanese
論文のバージョン
publisher
NAID
Eprints Journal Name
fest