2009 Fiscal Year Final Research Report
Evaluation of local site conditions based on single-station measurements of traffic-induced vibrations
| Project/Area Number |
20760384
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Building structures/materials
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| Research Institution | Building Research Institute |
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Principal Investigator |
ARAI Hiroshi Building Research Institute, 構造研究グループ, 主任研究員 (40302947)
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| Project Period (FY) |
2008 – 2009
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| Keywords | 交通振動 / 無線LAN / 表面波 / 逆解析 / 表層地盤 / S波速度構造 / 減衰定数 / 地震動増幅特性 |
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| Research Abstract |
A method for estimating S-wave velocity profile and damping ratios of surface soils is proposed, based on a back analysis of spatial variation of particle orbit for traffic-induced vibrations observed with a three-component sensor. From the field tests and sensitivity analyses performed at several sedimentary sites, it is indicated that the proposed method could be effective for confirming the accuracy and reliability of soil properties estimated by using the existing surface wave method, e.g., microtremor array observation and/or horizontal-to-vertical spectral ratio (H/V) techniques.
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