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It is revealed that estimated bedrock outcrop seismic motion of mainshock of the Chuetsu-oki Earthquake is one with a relatively large periodic component of 2-3s. 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柏崎中心市街地における表層地盤と地震動の増幅
https://doi.org/10.34447/00000949
https://doi.org/10.34447/00000949f5e20c08-c33c-4a40-9797-f23792aec296
名前 / ファイル | ライセンス | アクション |
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kiyo25_6-20 (1.6 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2021-03-10 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 柏崎中心市街地における表層地盤と地震動の増幅 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Amplification of Earthquake Motion in Surface Layer at Central City in Kashiwazaki | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | Surface layer | |||||
キーワード | ||||||
主題 | Amplification | |||||
キーワード | ||||||
主題 | Seismic motion | |||||
キーワード | ||||||
主題 | Chuetsu-oki earthquake | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.34447/00000949 | |||||
ID登録タイプ | JaLC | |||||
著者 |
田村, 良一
× 田村, 良一× 岩野, 武尊 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The central city in Kashiwazaki suffered severe building damage by the 2007 Niigata-ken Chuetsu-oki Earthquake. This study has examined amplification of seismic motion in surface layer at this area. Strong ground motion with a large periodic component of 2-3s were recorded at K-net Kashiwazaki located in the central city during main shock of the Chuetsu-oki Earthquake. Seismic amplification factor of the surface layer were examined by using the records of K-net Kashiwazaki and the estimated bedrock outcrop seismic motions at the Service Hall of Kashiwazaki-Kariwa nuclear power plant. For relatively weak seismic motion, a period of about 1.1-1.6s is amplified, which is consistent with the amplified period estimated by microtremor. Amplified periodic component by the Chuetsu-oki Earthquake are about 1.4-1.6s for largest aftershock and about 2-3s for main shock. The amplified periodic component become longer by increase of nonlinear behavior of subsurface soils with increasing amplitude of seismic motion. It is revealed that estimated bedrock outcrop seismic motion of mainshock of the Chuetsu-oki Earthquake is one with a relatively large periodic component of 2-3s. This is one reason why the strong ground motion as described above occurred at K-net Kashiwazaki. | |||||
書誌情報 |
新潟工科大学研究紀要 巻 25, p. 6-20, 発行日 2021-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1342-792X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10590360 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 新潟工科大学 |