| Co-Investigator(Kenkyū-buntansha) |
OTANI Jun 熊本大学, 大学院自然科学研究科, 教授 (30203821)
MUKUNOKI Toshifumi 熊本大学, 大学院自然科学研究科, 准教授 (30423651)
佐藤 晃 熊本大学, 大学院自然科学研究科, 准教授 (40305008)
YAMADA Fumihiko 熊本大学, 大学院自然科学研究科, 准教授 (60264280)
ASAUE Hisafumi 熊本大学, 大学院自然科学研究科, 助教 (70462843)
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| Budget Amount *help |
¥47,320,000 (Direct Cost: ¥36,400,000、Indirect Cost: ¥10,920,000)
Fiscal Year 2014: ¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2013: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2012: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2011: ¥13,520,000 (Direct Cost: ¥10,400,000、Indirect Cost: ¥3,120,000)
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| Outline of Final Research Achievements |
In order to assess the super long term stability of underground caverns, it is inevitable to evaluate fracture toughness of rock masses. In this study, the relationship between loading rate and fracture toughness, and size effect of specimen size were evaluated. Through the observing the crack propagation process by X-ray CT method, dependency towards the grain arrangement was also revealed. The diffusion and advection of materials in the pores of geo-materials were visualized by X-ray CT method. The trap phenomena of materials in the pores evaluated and the quantitative analysis of the trapped materials has been also conducted. In order to solve the global worming problem, CCS is the key technique. Here, the existence of CO2 in the pores was clearly visualized by X-ray CT and the storage ratio of CO2 was quantitatively evaluated. The 2 phase flows between LNAPLE (oil) and water in the soils including fingering process were also visualized and analyzed by X-ray CT method.method.
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