Study on Grouting Diffusion in the Pre-fabricated Inverted Arch Base Based on Osmotic Effect

DOI

10.2991/978-94-6463-726-7_33How to use a DOI?

Keywords

highway tunnel; grout diffusion; numerical simulation; theoretical calculation; prefabricated inverted arch

Abstract

Addressing the issue of fractured surrounding rock at the base encountered during the application of prefabricated inverted arches, finite element numerical simulation technology was employed. Utilizing the viscosity time-dependent Bingham fluid grout diffusion equation, and by coupling Darcy’s law with the physical field of mass transfer in porous media, the variation in grout diffusion range with pressure was analyzed. The results indicate that, during the grouting process based on permeation, grouting pressure serves as the primary controlling factor for grout diffusion. The diffusion radius of the grout exhibits a positive correlation with the grouting pressure. The grouting pressure undergoes three stages—rapid decay, gradual decay, and low-pressure stabilization—as the distance from the grouting hole increases. The diffusion range of the grout roughly assumes a circular shape in plan view. When increasing the grouting pressure to expand the diffusion range, there exists an efficient growth zone. Beyond a certain threshold, the growth efficiency of the diffusion radius decreases significantly, suggesting that further increasing the pressure offers limited additional benefit in terms of expanding the diffusion range.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Jinhao Li
AU  - Yaohui Du
AU  - Yue Gao
AU  - Junjie Xuan
PY  - 2025
DA  - 2025/06/13
TI  - Study on Grouting Diffusion in the Pre-fabricated Inverted Arch Base Based on Osmotic Effect
BT  - Proceedings of the 2024 6th International Conference on Hydraulic, Civil and Construction Engineering (HCCE 2024)
PB  - Atlantis Press
SP  - 329
EP  - 340
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6463-726-7_33
DO  - 10.2991/978-94-6463-726-7_33
ID  - Li2025
ER  -