Development and application of S-wave velocity structure estimation procedure based on generalized spectrum density ratios of microtremor
| Project/Area Number |
22560478
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | University of Fukui |
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Principal Investigator |
KOJIMA Keisuke 福井大学, 大学院・工学研究科, 教授 (40205381)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 常時微動 / S波速度構造 / 福井県 / アレイ観測 / スペクトル密度 / Ｓ波速度構造 / 逆解析 / 福井平野 / 大野盆地 / 液状化 |
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| Research Abstract |
The objectives of this study are to introduce the inversion analysis of the microtremor generalized spectrum density functions for estimating S-wave velocity structure of sedimentary site and to examine the reliability and accuracy of the proposed inversion procedure. The inversion analyses are conducted using the generalized spectrum density functions observed at 75 sites around the Fukui plain, and their S-wave velocity structures down to the Tertiary bedrock are estimated. The 3D configuration models of the Fukui Plain and the Ohno basin have been evaluated by using geo-statistical procedure. By comparing with the inverted structure of gravity anomaly observation and with the existing data, thevalidity of the estimated structure was confirmed.
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Report
(4 results)
Research Products
(34 results)
