1999 Fiscal Year Final Research Report Summary
Critical State of Earth Structures
| Project/Area Number |
10650480
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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 |
Geotechnical engineering
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
OHTA Hideki Tokyo Institute of Technology, Dept. of International Development Engineering, Professor, 大学院・理工学研究科, 教授 (80026187)
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| Co-Investigator(Kenkyū-buntansha) |
KUWANO Jiro Tokyo Institute of Technology, Dept. of Civil Engineering, Associate Professor, 工学部, 助教授 (30178149)
TAKEMURA Joro Tokyo Institute of Technology, Dept. of Cici Engineering, Associate Professor, 工学部, 助教授 (40179669)
KUSAKABE Osamu Tokyo Institute of Technology, Dept. of Civil Engineering, Professor, 工学部, 教授 (40092548)
KOBAYASHI Ichozo Tokyo Institute of Technology, Dept. of Civil Engineering, Instructor, 工学部, 助手 (20303258)
IIZUKA Atsushi Kobe University, Dept. of Civil Engineering, Associate Professor, 工学部, 助教授 (40184361)
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| Project Period (FY) |
1998 – 1999
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| Keywords | compacted soil / finite element method / geosynthetics / confining effect |
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| Research Abstract |
This investigation aims at rationally explaining the mechanical behavior of the soil structure reinforced by geosynthetics. The attention is paid to confining effect by the geosynthetics under shearing. The confining effect is interpreted as the mechanical interaction such that the reinforcement material works so as to prevent dilative deformation of soils. The elasto-plastic constitutive models which can describe the dilative deformation of soils under shearing are introduced and applied to the finite element simulation of the mechanical behavior of soil structure reinforced by geosynthetics. A full-scale in-situ model test, which was carried out in Kanazawa is chosen to analyse. After verification of applicability of employed methodology to the analysis of the model test, the computed results are compared with the monitored behavior of the soil structure reinforced by geosynthetics in the model test.
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