Geyang Song
Numerical study on the effect of protective wall depth in reducing structure deformations caused by tunnelling
Song, Geyang; Xu, Jingmin; Marshall, Alec M.
Authors
Jingmin Xu
Professor ALEC MARSHALL alec.marshall@nottingham.ac.uk
PROFESSOR OF GEOTECHNICAL ENGINEERING
Abstract
To reduce tunnelling induced damage of buildings, a ‘protective wall’ is sometimes constructed between the location of the new tunnel and existing foundations. One of the key design questions relates to the optimal wall depth, where further increase has a limited benefit in reducing structural distortions. This paper presents the results from finite element analyses used to study how protective walls reduce tunnelling induced damage to adjacent structures. A scenario where the protective is located very close to a tunnel is studied, which is considered to be of practical interest and a critical case concerning potential for building damage. The analyses consider a tunnel with a row of 4 piles (in sand) supporting a 5-storey steel frame running transverse to the tunnel direction, with a wall located between the tunnel and the first pile. Results show that the protective wall's depth affects soil and pile settlements, the redistribution of loads applied to the piles (due to structure stiffness), and ultimately structural deformations and building damage. For the case considered, the optimal depth of the wall is approximately 1.25 times the tunnel axis depth; marginal reductions in pile settlements and building damage are obtained as wall depth is increased further.
Citation
Song, G., Xu, J., & Marshall, A. M. (2023). Numerical study on the effect of protective wall depth in reducing structure deformations caused by tunnelling. Computers and Geotechnics, 158, Article 105374. https://doi.org/10.1016/j.compgeo.2023.105374
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 28, 2023 |
Online Publication Date | Mar 9, 2023 |
Publication Date | 2023-06 |
Deposit Date | Mar 2, 2023 |
Publicly Available Date | Mar 10, 2025 |
Journal | Computers and Geotechnics |
Print ISSN | 0266-352X |
Electronic ISSN | 1873-7633 |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 158 |
Article Number | 105374 |
DOI | https://doi.org/10.1016/j.compgeo.2023.105374 |
Keywords | Tunnelling; Finite element analysis; Pile; Structure; Protective wall |
Public URL | https://nottingham-repository.worktribe.com/output/17941800 |
Files
Song Et Al Numerical Protective Wall AAM
(15.5 Mb)
PDF
You might also like
Response of framed buildings on separate footings to tunnelling: a hybrid modelling study
(2024)
Presentation / Conference Contribution
Effect of elastic modulus on masonry buildings during tunnelling: a coupled centrifuge-numerical modelling study
(2024)
Presentation / Conference Contribution
Setup and calibration of piles with FBG strain sensors in a geotechnical centrifuge
(2024)
Presentation / Conference Contribution
Effect of infill nonlinearity on frame response to tunnelling
(2024)
Presentation / Conference Contribution
Coupled Centrifuge-Numerical Modelling of Shallow Strip Foundations
(2024)
Presentation / Conference Contribution
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search