| 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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| 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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