掲載雑誌（和）：
岩盤力学に関するシンポジウム講演論文集
Vol：
22巻
年：
1990年
頁：
86-90頁
著者（和）：
山辺 建二， 大久保 雅彦， 松本 徳久
タイトル（和）：
岩盤の表層構造と地震動
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抄録（和）：
-
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キーワード（和）：
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掲載雑誌（英）：
PROCEEDINGS OF THE SYMPOSIUM ON ROCK MECHANICS
著者（英）：
Kenji YAMABE, Masahiko OKUBO, Norihisa MATSUMOTO
タイトル（英）：
STRUCTURE OF SUBSURFACE LAYERS AND EARTHQUAKE MOTIONS
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抄録（英）：
The earthquake motions observed on the surface is affected by subsurface layers. In general these kind of studies deal with rock masses irrespective of classification and identification. However, it is important to classify rock masses in order to estimate the effects on dam foundation. We examined the effects by using multiple reflection theory. The results obtained can be summarized as follows. 1) Peak frequency of transfer function determined from structure of subsurface layers, it independent on depth of observed point. As observed point is within 20% of layer thickness from ground level, an observational error of amplification ratio is about 5% only. 2) Response ratio of three layers-model on the surface is not smaller than that of two layers- model in all of case. 3) Fourier spectrum of observed earthquake motion to dam-axis direction in a certain dam corresponds to calculated one by dam model in frequency under 5-9Hz.
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キーワード（英）：
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記事区分：
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区分
委員会論文集