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丸の内に於て觀測された地上及地下の地震動に就て
https://doi.org/10.15083/0000034806
https://doi.org/10.15083/000003480671feebfe-9782-4a09-8008-7b1bb8d1b332
名前 / ファイル | ライセンス | アクション |
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ji0123015.pdf (3.0 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2008-06-06 | |||||
タイトル | ||||||
タイトル | 丸の内に於て觀測された地上及地下の地震動に就て | |||||
言語 | ja | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000034806 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | On the Upper Surface and Underground Seismic Disturbances at the Down Town in Tokyo | |||||
著者 |
齊田, 時太郎
× 齊田, 時太郎× 鈴木, 正治 |
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著者別名 | ||||||
識別子 | 134687 | |||||
識別子Scheme | WEKO | |||||
姓名 | Saita, Tokitaro | |||||
著者別名 | ||||||
識別子 | 134688 | |||||
識別子Scheme | WEKO | |||||
姓名 | Suzuki, Masazi | |||||
著者所属 | ||||||
著者所属 | 地震研究所 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Lately the authors have observed seismic disturbances at Marunouchi where is the representative ground of the down town in Tokyo. These observations were held at the same time in three places; which are surface ground, 30 feet and 68 feet deep underground respectively. The 68 feet deep underground level is exactly the boundary of alluvium and diluvium. The diluvium is made of compact materials and its bearing power is greater than 20 tons per square foot, while the alluvium is made of soft materials and its bearing power is less than 1 tons per square foot. Therefore, these observations have determine how 68 feet thick soft alluvial layer vibrates by seismic disturbances. The instruments were Ishimoto's seismic accelerometers. The authors have found that, in alluvial layer, there are numerous waves having about 0.2 sec. and 0.7 sec. periods; in diluvial formation, 0.25 sec. and 0.45 sec. respectively. In consequence of drawing the resonance curve for vibrations in the alluvium, the author are able to ascertain that 0.25 sec and 0.75 sec. are the proper periods of the alluvial layer. More-over, the acceleration in 68 feet deep underground was about 1/3 to 1/5 of the surface ground. These data will be available to engineering seismology and prevention for earthquake disaster. | |||||
書誌情報 |
東京帝國大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, Tokyo Imperial University 巻 12, 号 3, p. 517-526, 発行日 1934-09-30 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00029699 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 453 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京帝国大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, Tokyo Imperial University |