2010 Fiscal Year Final Research Report
Development of rational design method of underground structures considering time-dependent interaction with surrounding soil
| Project/Area Number |
21760350
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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 |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Saitama University |
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Principal Investigator |
MAKI Takeshi Saitama University, 理工学研究科, 准教授 (60292645)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 地下構造物 / 時間依存性相互作用 / 合理的設計法 / 有限要素解析 / クリープ / 土圧 / 付着 |
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| Research Abstract |
The mechanism of soil pressure variation due to time-dependent deformation of underground RC box culvert such as creep was clarified and its evaluation method was proposed. Furthermore, the several examples of box culvert having different sectional dimensions and reinforcement arrangement were designed and their stability and seismic safety were verified both by long-term stability analysis considering creep deformation and by seismic response analysis. Finally, the possibility of rational design of underground structures was indicated by raising allowable design compressive stress level.
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