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A multivariate model of deep slurry infiltration in slurry shield tunneling
https://orcid.org/0000-0001-7425-1134
https://orcid.org/0009-0006-7367-143X
Highlights Comprehensively analyzed the influencing factors in a variety of slurry infiltration process. Introduce dynamic boundary theory and consider the dynamic changes in the computational domain of the theoretical model over time. Revealing the transition sign of slurry from surface infiltration stage to deep infiltration stage.
Abstract 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.
A multivariate model of deep slurry infiltration in slurry shield tunneling
https://orcid.org/0000-0001-7425-1134
https://orcid.org/0009-0006-7367-143X
Highlights Comprehensively analyzed the influencing factors in a variety of slurry infiltration process. Introduce dynamic boundary theory and consider the dynamic changes in the computational domain of the theoretical model over time. Revealing the transition sign of slurry from surface infiltration stage to deep infiltration stage.
Abstract 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.
A multivariate model of deep slurry infiltration in slurry shield tunneling
https://orcid.org/0000-0001-7425-1134
https://orcid.org/0009-0006-7367-143X
Highlights Comprehensively analyzed the influencing factors in a variety of slurry infiltration process. Introduce dynamic boundary theory and consider the dynamic changes in the computational domain of the theoretical model over time. Revealing the transition sign of slurry from surface infiltration stage to deep infiltration stage.
Abstract 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.
A multivariate model of deep slurry infiltration in slurry shield tunneling
Liu, Keqi (author) / Pei, Hezheng (author) / Wang, Shuhong (author) / Zhang, Ze (author) / Yang, Runsheng (author)
2024-01-05
Article (Journal)
Electronic Resource
English
Slurry for slurry shield sand stratum tunneling and preparation method thereof
| European Patent Office | 2015