| Project/Area Number |
21310118
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Natural disaster science
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| Research Institution | National Research Institute for Earth Science and Disaster Prevention |
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Principal Investigator |
AOI Shin 独立行政法人防災科学技術研究所, 観測・予測研究領域 地震・火山防災研究ユニット, 主任研究員 (80360379)
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| Co-Investigator(Kenkyū-buntansha) |
KUNUGI Takashi 独立行政法人防災科学技術研究所, 観測・予測研究領域 地震・火山防災研究ユニット, 主任研究員 (70414414)
FUJIWARA Hiroyuki 独立行政法人防災科学技術研究所, 社会防災システム研究領域・災害リスク研究ユニット, 総括主任研究員 (80414407)
SENNA Shigeki 独立行政法人防災科学技術研究所, 社会防災システム研究領域・災害リスク研究ユニット, 客員研究員 (90500447)
NAKAMURA Hiromitsu 独立行政法人防災科学技術研究所, 社会防災システム研究領域・災害リスク研究ユニット, 主任研究員 (60426004)
TOBITA Tetsuo 京都大学, 防災研究所, 准教授 (00346058)
IAI Susumu 京都大学, 防災研究所, 教授 (20359780)
ASANO Kimiyuki 京都大学, 防災研究所, 助教 (80452324)
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| Co-Investigator(Renkei-kenkyūsha) |
IWATA Tomotaka 京都大学, 防災研究所, 教授 (80211762)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2009: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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| Keywords | 地震 / 自然現象観測・予測 / 非線形 / 地盤工学 / 固体地球物理学 |
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| Research Abstract |
Recently, distinct asymmetries of the up-down ground acceleration, which cannot be explained by conventional soil response theorem, have been observed in source area of the reverse-type earthquake fault. In this research, we have investigated the mechanism of ‘trampoline effect’ which is the origin of this asymmetry by experimental and numerical method. We have successfully reproduced the asymmetric motions by both the table shaking experiments and the numerical simulations, and shown that both the granularity and the elasticity play important roles when the vertical ground motions become asymmetric.
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