Strain Gradient Model of Zonal Disintegration of Rock Mass near Deep-Level Tunnels
- Авторы: Qi C.Z.1, Li K.R.1,2, Bai J.P.3, Chanyshev A.I.4, Liu P.1
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Учреждения:
- Beijing Future Urban Design High-Tech Innovation Center and Innovation Team of Civil and Underground Engineering of Ministry of Education of P.R.China
- Defense Engineering Institute
- Faculty of Computing, Engineering & Science
- Chinakal Institute of Mining, B, Russian Academy of Sciences
- Выпуск: Том 53, № 1 (2017)
- Страницы: 21-33
- Раздел: Geomechanics
- URL: https://journals.rcsi.science/1062-7391/article/view/184173
- DOI: https://doi.org/10.1134/S1062739117011808
- ID: 184173
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Аннотация
This paper presents one strain gradient model of zonal disintegration of rock mass near deep level tunnel. The governing equations and boundary conditions of the model are established. Numerical methods (quasi-Newton method and shooting method) are adopted to solve the obtained fourth-order equilibrium equations with higher order boundary conditions in terms of displacement. The stress field in elastic and plastic zones is obtained. The effects of model parameters on stresses distribution in surrounding the tunnel rock mass are examined. The necessary conditions for the formation of zonal disintegration are elucidated.
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Об авторах
C. Qi
Beijing Future Urban Design High-Tech Innovation Center and Innovation Team of Civil and Underground Engineering of Ministry of Education of P.R.China
Автор, ответственный за переписку.
Email: qichengzhi65@163.com
Китай, Beijing, 100044
K. Li
Beijing Future Urban Design High-Tech Innovation Center and Innovation Team of Civil and Underground Engineering of Ministry of Education of P.R.China; Defense Engineering Institute
Email: qichengzhi65@163.com
Китай, Beijing, 100044; Nanjing, 210007
J. Bai
Faculty of Computing, Engineering & Science
Email: qichengzhi65@163.com
Великобритания, Pontypridd, CF37 1DL
A. Chanyshev
Chinakal Institute of Mining, B, Russian Academy of Sciences
Email: qichengzhi65@163.com
Россия, Krasnyi pr. 54, Novosibirsk, 630091
P. Liu
Beijing Future Urban Design High-Tech Innovation Center and Innovation Team of Civil and Underground Engineering of Ministry of Education of P.R.China
Email: qichengzhi65@163.com
Китай, Beijing, 100044
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