掲載雑誌(和): 日本地震工学シンポジウム論文集 Vol: 9-1巻 年: 1994年 頁: 163-168頁 著者(和): 時松 孝次, 新井 洋, 酒井 潤也, 仲條 有二 タイトル(和): 微動のアレイ観測から推定した釧路気象台と釧路港湾の地盤特性と地震動特性 抄録(和):
- キーワード(和): - 掲載雑誌(英): PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM 著者(英): Kohji TOKIMATSU, Hiroshi ARAI, Junya SAKAI, Yuji NAKAJO タイトル(英): SOIL CHARACTERISTICS AND EARTHQUAKE GROUND MOTIONS AT KUSHIRO JMA AND KUSHIRO HARBOR ESTIMATED FROM ARRAY OBSERVATION OF MICROTREMORS 抄録(英):
Possible use of microtremors is explored for estimating the effects of subsurface soil conditions on ground motion characteristics. For this purpose, microtremor measurements are conducted using arrays at two sites (Kushiro JMA and Kushiro Harbor) where strong motion accelerograms are available for the same earthquake. Based on F-K spectrum analysis, dispersion curves of Rayleigh waves for the sites are determined, which result in shear wave velocities down to depths of 400 m. With these profiles, the spectrum ratio of ground surface motions at two sites is estimated. The spectrum ratio shows fairly good agreement with that of the observed records. キーワード(英): - 記事区分 - 区分    委員会論文集