掲載雑誌(和): | 日本地震工学シンポジウム論文集 |
Vol: | 10-1巻 |
年: |
1998年
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頁: |
731-736頁
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著者(和): |
篠崎 祐三,吉田 一博
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タイトル(和): |
兵庫県南部地震「震災の帯」発生要因に関する考察:震源と盆地の影響
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抄録(和): |
1995 年兵庫県南部地震において生じた震度7の地域 (震災の帯) の発生要因を考察するために、3次元堆積盆地モデルを設定し、入射波動として平面波、点震源、および、移動断層震源を想定し、堆積盆地端部の地動応答を3次元境界要素法を用いて評価する。平面波人射による堆積盆地端部の地動応答は震災の帯のように激しく増幅しない。
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キーワード(和): |
-
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掲載雑誌(英): |
THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
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著者(英): |
Yuzo SHINOZAKI,Kazuhiro YOSHIDA
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タイトル(英): |
STUDY ON HEAVILY DAMAGED BELT ZONE DURING 1995 KOBE EARTHQUAKE: EFFECTS OF FAULT DIRECTIVITY AND BASIN
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抄録(英): |
A direct three-dimensional boundary element method is applied to evaluate seismic responses in three- dimensional sedimentary basin to estimate the amplification characteristics of the ground motions in the heavily damaged belt zone in Kobe City during the 1995 Hyogo-ken earthquake. We have utilized the Green's func-tions for elastic half-space medium to formulate boundary integral equations in terms of displacements and tractions at the medium interface. The effects of different types of incident waves such as plane waves, a point source and double couple source on the responses of sedimentary basin are examined in detail. The numerical results for the case of incident plane waves do not show such a significant amplification near the edge of the basin as shown in the heavily damaged belt zone during the 1995 Kobe earthquake.
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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 |