A variational method for calculating the longitudinal deformation of a shield tunnel in soft soil caused by grouting under tunnel
ISSN: 0264-4401
Article publication date: 29 January 2021
Issue publication date: 9 July 2021
Abstract
Purpose
The paper aims to predict longitudinal deformation of a tunnel caused by grouting under the tunnel bottom in advance according to the grouting parameters, which can ensure the safety of the tunnel structure during the grouting process and also help to design the grouting parameters.
Design/methodology/approach
The paper adopted the analytical approach for calculating the longitudinal deformation of a shield tunnel caused by grouting under a tunnel, including usage of the Mindlin’s solution, the minimum potential energy principle and case validation.
Findings
The paper provides a variational method for calculating the longitudinal deformation of a shield tunnel in soft soil caused by grouting under the tunnel, which has high computational efficiency and accuracy.
Originality/value
This paper fulfils an identified need to study how the longitudinal deformation of a shield tunnel in soft soil caused by grouting under the tunnel can be calculated.
Keywords
Acknowledgements
This study was financially supported by the National Natural Science Foundation of China through Grant No. 51808405 and the Science Research Program of the Shanghai Municipal Commission of Science and Technology through Grant No. 19DZ1201004.
Citation
Di, H., Huang, S., Fu, L. and Wang, B. (2021), "A variational method for calculating the longitudinal deformation of a shield tunnel in soft soil caused by grouting under tunnel", Engineering Computations, Vol. 38 No. 6, pp. 2733-2754. https://doi.org/10.1108/EC-09-2020-0490
Publisher
:Emerald Publishing Limited
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