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作者:

Wu, Jie (Wu, Jie.) | Li, Pengfei (Li, Pengfei.) (学者:李鹏飞) | Yao, Aijun (Yao, Aijun.) | Chen, Yang (Chen, Yang.)

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EI Scopus SCIE

摘要:

In this paper, the impact of non-Darcy seepage on the steady seepage field in front of a grouted subsea tunnel face is analysed. Analytical solutions are proposed by combining the three-dimensional (3D) seepage continuity equation, which is expressed in spherical coordinates, with the Hansbo seepage model. These solutions, which are also suitable for calculating the hydraulic head distribution in front of the tunnel face without a grouted zone, are verified by a series of numerical simulations. Comparisons show that this study enabled the augmentation of the classical analytical model. Finally, the influence of relevant parameters, including the nonlinear parameters in the Hansbo seepage model, the relative permeability (i.e., kr/kg), and the grouted zone thickness, are inves-tigated. The results show that the exponential parameter m and critical hydraulic gradient i1 in the Hansbo seepage model have a more significant impact on the water inflow than the water pressure on the grouted zone. Based on the non-Darcy seepage model, the water inflow is lower and the water pressure on the grouted zone is larger than that obtained by Darcy's model.

关键词:

Non-Darcy seepage Three-dimensional seepage fields Numerical simulation Grouted subsea tunnel

作者机构:

  • [ 1 ] [Wu, Jie]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Pengfei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Yao, Aijun]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Chen, Yang]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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来源 :

COMPUTERS AND GEOTECHNICS

ISSN: 0266-352X

年份: 2023

卷: 159

5 . 3 0 0

JCR@2022

ESI学科: COMPUTER SCIENCE;

ESI高被引阀值:19

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SCOPUS被引频次: 11

ESI高被引论文在榜: 0 展开所有

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