Explanation for twin tunnelling-induced surface settlements by changes in soil stiffness on account of stress history
- Submitting institution
-
City, University of London
- Unit of assessment
- 12 - Engineering
- Output identifier
- 457
- Type
- D - Journal article
- DOI
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10.1016/j.tust.2018.12.015
- Title of journal
- Tunnelling and Underground Space Technology
- Article number
- -
- First page
- 160
- Volume
- 85
- Issue
- -
- ISSN
- 0886-7798
- Open access status
- Compliant
- Month of publication
- December
- Year of publication
- 2018
- URL
-
-
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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6
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- Novel finite element analyses are presented which investigate the changes in soil stiffness that occur during the sequential excavation of twin tunnels. The key to these analyses is the use of a constitutive model, first developed by the sixth author, that can predict differences in stiffness following the different stress histories experienced by the soil surrounding the tunnels. This is the first time that predictions using this model have been linked to high quality centrifuge model test data which will ultimately enable more accurate prediction of movements around excavations, a vital aspect of many urban infrastructure projects.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -