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Influence of confining pressure-dependent Young’s modulus on the convergence of underground excavation
http://hdl.handle.net/10069/39990
http://hdl.handle.net/10069/399900c3e5abc-ddd8-4ef1-afb0-916bf14c1794
名前 / ファイル | ライセンス | アクション |
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TUST83_135.pdf (662.9 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-10-06 | |||||
タイトル | ||||||
タイトル | Influence of confining pressure-dependent Young’s modulus on the convergence of underground excavation | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Confining pressure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Numerical simulation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Semi-analytical solution | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Underground excavation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Young's modulus | |||||
資源タイプ | ||||||
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 |
Wu, Xuezhen
× Wu, Xuezhen× Jiang, Yujing× Guan, Zhenchang× Gong, Bin |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The actual convergence of an excavation located in fractured rock mass or the soft rock is largely different with the theoretical result in many cases. Experimental results showed that the influence of confining pressure on Young's modulus is very significant. This paper attempted to illustrate the influence of the confining pressure-dependent Young's modulus in the ground reaction analyses of mountain tunnel. Firstly, the relationship between Young's modulus and confining pressure was described as a non-linear function according to the test results. Based on the plane strain axial symmetry assumption and the incremental theory of plasticity, equilibrium equations and compatibility equations of rock mass around a circular tunnel were deduced theoretically. Based on fourth Runge-Kutta method, a semi-analytical solution was achieved. Considering the effect of confining pressure on Young's modulus, the stress and deformation of rock mass around tunnel was calculated by both analytical and numerical methods. The influence of confining pressure-dependent Young's modulus in surrounding rock was estimated quantitatively. Finally, Tawara saka Tunnel in Japan was taken as an example to explain the influence of confining pressure-dependent Young's modulus. The results showed that the error with respect to the monitoring data was largely reduced with the confining pressure-dependent Young's modulus model, which indicated the necessity of considering the non-uniform distribution of Young's modulus. | |||||
書誌情報 |
Tunnelling and Underground Space Technology 巻 83, p. 135-144, 発行日 2018-10-06 |
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出版者 | ||||||
出版者 | Elsevier Ltd | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 08867798 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.tust.2018.09.030 | |||||
権利 | ||||||
権利情報 | c 2018 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Tunnelling and Underground Space Technology, 83, pp.135-144; 2019 |