Mechanical behavior of a rock fracture and mechanisms for the scale effect
| Project/Area Number |
19360402
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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 |
Earth system and resources enginnering
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| Research Institution | Tohoku University |
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Principal Investigator |
MATSUKI Koji Tohoku University, 大学院・環境科学研究科, 教授 (10108475)
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| Co-Investigator(Kenkyū-buntansha) |
SAKAGUCHI Kiyotoshi 東北大学, 大学院・環境科学研究科, 准教授 (50261590)
KIZAKI Akihisa 東北大学, 大学院・環境科学研究科, 助教 (60344686)
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| Research Collaborator |
GIWELLI A.Ausama 東北大学, 大学院・環境科学研究科, 博士課程後期3年の課程大学院生
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2009: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2008: ¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2007: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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| Keywords | 廃棄物地下保存・処分 / 地下き裂 / き裂の力学的挙動 / き裂透水性 / 寸法効果 / 地下岩盤き裂 / 岩石 / き裂 / 力学的挙動 / 垂直応力 / せん断応力 / 一面せん断試験 |
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| Research Abstract |
In this study, we experimentally and theoretically investigated mechanisms for scale effect on the mechanical behaviors of a rock fracture, and showed that the scale effect on the closure and shear behavior of a fracture under normal and shear stresses primarily depends on that on the standard deviation (SD) of the aperture. Furthermore, we proposed a method for estimating the hydraulic conductivity of a fracture with an arbitrary direction in the axes of principal stresses, and illustrated the variation in the hydraulic transmissivity with the direction of the fracture.
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Report
(4 results)
Research Products
(22 results)
