Evaluation method for long-term stability of natural barrier for geological repository of high-level nuclear waste
| Project/Area Number |
24360191
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Partial Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Geotechnical engineering
|
|---|
| Research Institution | Nagoya Institute of Technology |
|---|
Principal Investigator |
FENG ZHANG 名古屋工業大学, 工学(系)研究科(研究院), 教授 (70303691)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
HOSSAIN Mohamed Shahin 名古屋工業大学, 工学研究科, 准教授 (00516495)
KOYAMA Tomofumi 京都大学, 工学研究科, 助教 (20467450)
SUZUKI Makoto 清水建設(株), 技術研究所, 研究員 (90416818)
|
|---|
| Project Period (FY) |
2012-04-01 – 2015-03-31
|
| Project Status |
Completed (Fiscal Year 2014)
|
| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
|
|---|
| Keywords | 高レベル核廃棄物地層処分 / 熱弾粘塑性構成式 / 三軸圧縮・クリープ試験 / THMA解析 / トンネルクリープ破壊 / モデル実験 / 三軸試験･クリープ試験 / THM解析 / モデル試験 |
|---|
| Outline of Final Research Achievements |
In this report, laboratory element tests on green tuff and man-made rock were systematically conducted to clarify the mechanical behavior of geomaterials related to geological repository problem of HLRW. Based on the test results, thermal-elasto-viscoplastic constitutive models for saturated/unsaturated geomaterials were proposed. Then, a finite element-finite difference scheme (FE-FD) for thermo-hydro-mechanical-air coupling problems with multi-phase field equations is proposed. Meanwhile, model tests on creep behavior of repository tunnel made of the man-made rock were also conducted to investigate the long-term stability problem. While, numerical analyses using the proposed method were simultaneously conducted to simulate the model tests. Furthermore, an in-situ deep geological repository of HLRW with both saturated/unsaturated geomaterials is simulated. It is concluded that the original purpose of the research is achieved.
|
Report
(4 results)
Research Products
(18 results)
