Methodology for rockbolt reinforcement and evaluation of interrelation between irrigation tunnels and grounds
| Project/Area Number |
15K07648
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Rural environmental engineering/Planning
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| Research Institution | Okayama University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
西村 伸一 岡山大学, 環境管理センター, 教授 (30198501)
珠玖 隆行 岡山大学, 環境生命科学研究科, 准教授 (70625053)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 農業用水路トンネル / 背面空洞 / 個別要素法 / ロックボルト / 矢板工法 / 補強 / 極小断面 / 補修 |
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| Outline of Final Research Achievements |
The maintenance of damaged irrigation tunnels has become a major social concern, and thus the evaluation of damage behavior of the current tunnels is important. Voids behind the tunnel lining may be created during or after construction by the conventional method, and the voids are the main factors for the failure. For the maintenance of the tunnel structure, the understanding of the interaction behavior between the ground and the tunnel lining with the void is required. The comprehension of the interaction after backfilling of the void is also needed because of the design of the reinforcement.
This study presents the interaction behaviors in the model test and the numerical analysis. To investigate the local deformation and the damage pattern, the comparison of the model test results and numerical results is carried out. The comparison of the convergence in the analysis is shown for better understanding of the reinforcement effect of the lockbolts.
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Report
(4 results)
Research Products
(9 results)
