The effect of irregular shape of ground surface on surface wve-based geotechnical survey
Project/Area Number |
25420505
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Geotechnical engineering
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Research Institution | Hiroshima University |
Principal Investigator |
Ichii Koji 広島大学, 工学(系)研究科(研究院), 准教授 (70371771)
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Co-Investigator(Kenkyū-buntansha) |
Hata Yoshiya 大阪大学, 工学研究科, 助教 (80463561)
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Project Period (FY) |
2013-04-01 – 2016-03-31
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Project Status |
Completed (Fiscal Year 2015)
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Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 表面波探査 / せん断波速度 / 盛土 / 矢板式岸壁 / 含水比 / FEM解析 / 護岸 / 物理探査 / 地表面形状 / 岸壁 / 液状化予測 |
Outline of Final Research Achievements |
The purpose of the study is to revail the applicability of geotechnical survey using surface-wave on the earth-structure with irregulra shape. First, the variation of the ground condition due to infiltaration of small particle in the ground and variatioj of water content in the ground is verified by laboratory tests. And the variaon of shear wave velocity profile in the ground were successfully measured in the sea-wall under tidal effect. Then, FEM simulation of surface-wave propagation and field measurements were carried out at a sheet-pile type sea wall and an embankment. The irregulrat shape of sea wall (The gap of the heigh between sea side and ground side) have minor effect on the measurement restuls; however, the irregulra shape of embankment apparent ly affect the measurement results. This is related to the position of measuement line (sensors layout), and the computed results of different measurement lines can be used as possible correction factors.
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Report
(4 results)
Research Products
(22 results)
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[Presentation] Comparison of monitored and estimated microtremor H/V spectra after the large-scale earthquakes at a ground disaster sitein Fusa District, Abiko City, Japan2015
Author(s)
Hata, Y., Ichii, K., Nozu, A., Maruama,Y. and Sakai, H.
Organizer
6th International Conference on Earthquake Geotechnical Engineering, Christchurch, New Zealand
Place of Presentation
Air Force Museum, New Zealand
Year and Date
2015-11-01
Related Report
Int'l Joint Research
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