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Discrete element numerical simulation of mechanical properties of methane hydrate-bearing specimen considering deposit angles
http://hdl.handle.net/10069/40000
http://hdl.handle.net/10069/40000961ffdf8-a03f-4d5e-87ee-3c5706519dee
名前 / ファイル | ライセンス | アクション |
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JNGSE76_103182.pdf (3.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||
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公開日 | 2020-12-18 | |||||||||||||
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タイトル | Discrete element numerical simulation of mechanical properties of methane hydrate-bearing specimen considering deposit angles | |||||||||||||
言語 | ||||||||||||||
言語 | eng | |||||||||||||
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主題Scheme | Other | |||||||||||||
主題 | Methane hydrate sediment | |||||||||||||
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主題Scheme | Other | |||||||||||||
主題 | Mechanical properties | |||||||||||||
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主題Scheme | Other | |||||||||||||
主題 | Deposit angle | |||||||||||||
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主題Scheme | Other | |||||||||||||
主題 | Compress test | |||||||||||||
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主題Scheme | Other | |||||||||||||
主題 | Discrete element method | |||||||||||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
資源タイプ | journal article | |||||||||||||
著者 |
Gong, Bin
× Gong, Bin
× Jiang, Yujing
× Yan, Peng
× Zhang, Sunhao
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内容記述タイプ | Abstract | |||||||||||||
内容記述 | Methane hydrate sediment (MHS) distributes under the seabed in different deposit angles according to the bottom simulating reflector (BSR) exhibitions. The mechanical properties of the combined sediment composed of soil and MHS dominate the stability of the slope. In this work, simulation models that consider the deposit angles, the confining pressures, loading velocities and hydrate saturation (Sh), were generated by using the discrete element method, following which the bi-axial compression of these models is simulated. The deformation response behavior of these models is studied systematically under different loading velocities, deposit angle, and hydrate saturation conditions. With increasing deposit angles, the peak strength approximately increased first and then decreased. The peak stress gradually decreases with increasing deposit angles when the hydrate saturation is more than 70% under the condition that the confining pressure is 10 MPa. The peak strength and stiffness of sediments increased with increasing Sh. The confining pressure enhanced the peak strength linearly, and the elastic modulus increased first and then decreased in a parabolic equation. Under different loading velocities conditions, the peak strength linearly increased, and the elastic modulus logarithmically increased with increasing loading velocity. | |||||||||||||
書誌情報 |
Journal of Natural Gas Science and Engineering 巻 76, p. 103182, 発行日 2020-01-28 |
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出版者 | ||||||||||||||
出版者 | Elsevier B.V. | |||||||||||||
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収録物識別子タイプ | ISSN | |||||||||||||
収録物識別子 | 18755100 | |||||||||||||
DOI | ||||||||||||||
関連タイプ | isVersionOf | |||||||||||||
識別子タイプ | DOI | |||||||||||||
関連識別子 | 10.1016/j.jngse.2020.103182 | |||||||||||||
権利 | ||||||||||||||
権利情報 | c 2020 Published by Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||||||||||
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出版タイプ | AM | |||||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
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内容記述タイプ | Other | |||||||||||||
内容記述 | Journal of Natural Gas Science and Engineering, 76, art.no.103182; 2020 |