| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-05-08 |
| タイトル |
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|
タイトル |
Simulation study on the response characteristics of rock joints to cyclic shear load under constant normal stiffness boundary |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| キーワード |
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|
言語 |
en |
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主題Scheme |
Other |
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主題 |
Rock joints |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
|
主題 |
Cyclic loading |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Shear properties |
| キーワード |
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言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Numerical simulation |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Constant normal stifness |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Luan, Hengjie
Liu, Ziyi
Zhang, Sunhao
Jiang, Yujing
Li, Bo
Chen, Hongbin
Wang, Changsheng
Jiang, Tianqi
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Under cyclic loading, rock joints underwent continuous slipping and closure, resulting in fatigue damage to the joints and thereby affecting the stability of rock engineering projects. To investigate the fatigue shear characteristics of joints under cyclic stress, numerical simulations of rough joints under cyclic shear stress, involving variations in normal stiffness, loading amplitudes, and loading frequencies, were performed using a cyclic shear loading method based on the FISH language. The results indicated that there was a hysteretic effect in the shear stress–shear displacement curves of joints. During cyclic shear stress, the shear velocity of the joint fluctuated from positive to negative, with the maximum shear velocity changing by approximately 10 times, increasing from 0.012 × 10–2 to 0.15 × 10–2 mm/s before and after joint instability. As normal stiffness increased to the same shear displacement, more cracks developed in the joint. When the normal stiffness exceeded 3 GPa/m, a conspicuous failure zone was evident. Loading amplitude showed an inverse proportionality to the number of cycles required to achieve the target shear displacement. Loading frequency exhibited a linear proportionality to the number of cycles needed to reach the target shear displacement The fatigue damage degree of joints during cyclic shear could be represented by two indices: the Felicity ratio (FR) and the damage variable (D). Under different conditions, the critical D value ranged from 0.037 to 0.097, while the corresponding critical FR value varied between 0.700 and 0.822, reflecting the impact of normal stiffness, amplitude, and frequency on joint fatigue failure. |
|
言語 |
en |
| 書誌情報 |
en : Geomechanics and Geophysics for Geo-Energy and Geo-Resources
巻 11,
号 1,
p. art. no. 47,
発行日 2025-04-24
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| 出版者 |
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出版者 |
Springer Nature |
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言語 |
en |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
2363-8419 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1007/s40948-025-00966-y |
| 権利 |
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|
権利情報 |
This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/. |
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言語 |
en |
| 著者版フラグ |
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出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 引用 |
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内容記述タイプ |
Other |
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内容記述 |
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 11(1), art. no. 47; 2025 |
|
言語 |
en |
GGGG11-47.pdf (3.7 MB)
