A Multivariate Model of Deep Slurry Infiltration in Slurry Shield Tunneling

There are multiple factors that influence slurry infiltration processes, making it necessary to consider these factors when comprehensively analyze the process of deep slurry infiltration. Firstly, this paper proposes a theoretical model for multivariate deep slurry infiltration and introduces a control equation governing the variation of the slurry infiltration domain. This equation accurately reflects changes in the infiltration boundary during the slurry infiltration process and meticulously responds to variations in pore water pressure, slurry retention rate, and pressure conversion efficiency-critical factors in the slurry infiltration process. Then, the Lax method was used to solve the corresponding control equations of the model, realizing the effective solution of the implicit partial differential equation system. The computational results of the theoretical model were compared with the indoor test results. Finally, the validated model was used to analyze the deep slurry infiltration characteristics. The results indicate that the theoretical model can reasonably simulate the deep slurry infiltration process, and the use of dynamic computational domain to describe deep slurry infiltration process is more in line with engineering practice. Furthermore, this model has guiding significance for the division of deep slurry infiltration stage and slurry surface infiltration stage.

• Record URL:
  • https://doi.org/10.1016/j.trgeo.2024.101181
• Record URL:
  • http://www.sciencedirect.com/science/article/pii/S2214391224000023
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/22143912
• Supplemental Notes:
  • © 2024 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Liu, Keqi
  • 0000-0001-7425-1134
  • Pei, Hezheng
  • Wang, Shuhong
  • Zhang, Ze
  • Yang, Runsheng
  • 0009-0006-7367-143X
• Publication Date: 2024-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: 101181
• Serial:
  • Transportation Geotechnics
  • Volume: 45
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 2214-3912
  • Serial URL: http://www.sciencedirect.com/science/journal/22143912

Subject/Index Terms

• TRT Terms: Infiltration; Multivariate analysis; Railroad tunnels; Shield tunneling method; Simulation; Slurry
• Subject Areas: Bridges and other structures; Geotechnology; Maintenance and Preservation; Railroads;

Filing Info

• Accession Number: 01909152
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 22 2024 9:06AM