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タイトル: 1982年浦河沖地震による被害
その他のタイトル: A Report on the Damage to Structures Caused by the Urakawa-Oki Earthquake of 1982
著者: 伯野, 元彦
大谷, 圭一
著者(別言語): Hakuno, Motohiko
Ohtani, Keiichi
発行日: 1983年1月17日
出版者: 東京大学地震研究所
掲載誌情報: 東京大学地震研究所彙報. 第57冊第3号, 1983.1.17, pp. 581-608
抄録: The Urakawa-Oki earthquake of M=7.1 occurred on March 21, 1982 and consequently cause some damage to small towns in the south part of Hokkaido. This report describes the earthquake-induced damage to the various types of structures and life lines: Houses and buildings, Roads, Railways. Water supply systems, Electric power and communication systems, Landslides and land failures. The following characteristic features of the damage due to the earthquake are recognized, 1. Wooden houses on soft peat ground suffered damage owing to the destruction of the peat ground itself. On the other hand, reinforced concrete buildings on soft peat ground always have a deep pile foundation and suffered almost no damage. Authors suppose the peat layer to be so soft that it acts like a high cut filter and high frequency components of the incident ground motion which are the main components of high acceleration, is reduced. 2. Most lifeline systems such as water, electric supply systems, and traffic, lost their functions due to the earthquake, and people were subjected to inconveniences. For example, it took 30 days to rehabilitate the railway traffic in this area.
URI: http://hdl.handle.net/2261/12859
ISSN: 00408972


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