| Budget Amount *help |
¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
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| Outline of Final Research Achievements |
In order to use underground environment as an engineering space (e.g. geological isolation of high-level nuclear waste), understanding of the mechanical properties of the rock material is essential. Strain measurements of rock material under uniaxial compression using neutron diffraction technique were performed, and the mechanism of strain accumulation in rock material was analyzed. In addition, triaxial compression apparatus for neutron experiments was desighned and developed.
Commissioning and feasibility tests of the newly designed triaxial compression apparatus was performed, and strain measurements of rock materials using neutron diffraction under triaxial compression were also carried out. The strain accumulation mechanism is under analysis.
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