Micromechanics of compression, shear and solidification of geo-materials under high pressure
Project/Area Number |
26289150
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Partial Multi-year Fund |
Section | 一般 |
Research Field |
Geotechnical engineering
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Research Institution | University of Tsukuba |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
波多野 恭弘 東京大学, 地震研究所, 准教授 (20360414)
渡辺 圭子 立命館大学, 理工学部, 准教授 (80423599)
別府 万寿博 防衛大学校(総合教育学群、人文社会科学群、応用科学群、電気情報学群及びシステム工, システム工学群, 教授 (90532797)
北島 弘子 国立研究開発法人産業技術総合研究所, 火山研究部門, 外来研究員 (60635796)
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Project Period (FY) |
2014-04-01 – 2017-03-31
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Project Status |
Completed (Fiscal Year 2016)
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Budget Amount *help |
¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Fiscal Year 2016: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2015: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
|
Keywords | 粒子破砕 / 高速衝突 / 高速せん断 / フラクタル粒度分布 / 断層面の力学 / 惑星地盤工学 / 地盤材料 / 高圧 / マイクロメカニックス / 圧縮固化 |
Outline of Final Research Achievements |
In order to understand the complex bulk behavior of crushable granular materials from micromechanism, we performed (1)single grain crushing test, (2)One dimensional compression test, (3) Rotary shear test, (4) projectile impact test and (5) sand layer explosion test. Based on those experimental results, we constructed a compression constitutive model that can describe the evolution of grain size distribution in terms of applied stress in a quantitative manner. The obtained results will contribute to the evaluation of mechanics of earthquake faults and permeability through them, prediction of dynamic response of geomaterials subjected to impact load, estimation of physical and mechanical properties of planetary surface soil, and so on.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Investigation of 3D Grain Shape Characteristics of Lunar Soil Retrieved in Apollo 16 Using Image-Based Discrete-Element Modeling.2014
Author(s)
Katagiri, J., Matsushima, T., Yamada, Y., Tsuchiyama, A., Nakano, T., Uesugi, K., Ohtake, M., and Saiki, K.
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Journal Title
J. Aerosp. Eng.
Volume: 10
Issue: 4
Pages: 1061-1073
DOI
Related Report
Peer Reviewed
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[Presentation] Why was Armstrong’s footprint so clear?2016
Author(s)
Takashi Matsushima
Organizer
ADVANCING EXPERIMENTAL GEOMECHANICS: EXPERIMENTS IN NEED OF THEORIES AND THEORIES IN NEED OF EXPERIMENTS
Place of Presentation
Mercure Resort Hunter Valley Gardens in Pokolbin, NSW, Australia
Related Report
Int'l Joint Research / Invited
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[Presentation] Micromechanics of Lunar Soil2016
Author(s)
Takashi Matsushima
Organizer
IMS-Chubu 2016 "New concepts and new developments in soil mechanics and geotechnical engineering"
Place of Presentation
Nagoya University, Nagoya, Aichi
Related Report
Int'l Joint Research
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