| Project/Area Number |
17380145
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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 |
Irrigation, drainage and rural engineering/Rural planning
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| Research Institution | Okayama University |
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Principal Investigator |
MURAKAMI Akira Okayama University, Graduate School of Environmental Science, Professor (80157742)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Shin'chi Okayama University, Graduate School of Environmental Science, Associate Professor (30198501)
NISHIYAMA Tatsuro Ehime University, Faculty of Agricuiture, Associate Professor (30294440)
SUZUKI Makoto Shimizu, Co, Research Institute, Manager (90416818)
SHIBATA Toshifumi Matsue College of Technology, Lecturer (30342546)
IIZUKA Atsushi Kobe University, Research Center for Urban Safety and Security, Professor (40184361)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥16,520,000 (Direct Cost: ¥16,100,000、Indirect Cost: ¥420,000)
Fiscal Year 2007: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2006: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2005: ¥12,000,000 (Direct Cost: ¥12,000,000)
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| Keywords | Agricultural Engineering / Geotechnical Engineering / Performance Based Design / Analysis, Evaluation / Satellite Measurement / GPS |
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| Research Abstract |
A GPS receiver was installed in 2007 at the top of foundation, e.g., the bottom of road embankment to measure the settlement of foundation at the construction site of Yomogida tunnel of the North Kanto Highway project. Soil-water coupled elasto-plastic FEM analyses were carried out to explain the measured behavior and predict the final settlement by examining a set of parameters, initial/boundary conditions, and loading conditions. After comparing the results under different conditions, it is revealed that boundary and loading conditions have less influence on numerical prediction, and initial stress distribution has a significant role. Adjusted parameters based on laboratory tests on samples around the section with examined initial condition lead to numerical prediction of settlement with good accuracy. Management of measured data is done using the work station via cell phones. Soil-water coupled elasto-plastic FEM/mesh-free code is revised to consider the modification of design values within construction.
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