Mixed empirical-numerical method for investigating tunneling effects on structures
The assessment of potential for building damage due to ground displacements caused by tunnelling is a global issue being faced by engineers. There is a two-way interaction between tunnelling and existing buildings; tunnel construction affects a building by inducing displacements in the soil underlyi...
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| Format: | Article |
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Elsevier
2018
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| Online Access: | https://eprints.nottingham.ac.uk/48604/ |
| _version_ | 1848797804688834560 |
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| author | Haji, Twana Marshall, Alec M. Franza, Andrea |
| author_facet | Haji, Twana Marshall, Alec M. Franza, Andrea |
| author_sort | Haji, Twana |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | The assessment of potential for building damage due to ground displacements caused by tunnelling is a global issue being faced by engineers. There is a two-way interaction between tunnelling and existing buildings; tunnel construction affects a building by inducing displacements in the soil underlying its foundation, and buildings influence tunnelling induced displacements via their weight and stiffness. Numerical analyses are widely used to investigate tunnelling and its impact on structures, however numerically predicted ground displacements are generally wider and shallower than those observed in practice. This paper presents a two-stage mixed empirical-numerical technique to estimate the effect of building stiffness on ground displacements due to tunnelling. In the first stage, greenfield soil displacements are applied to the soil model and the nodal reaction forces are recorded. In the second stage, the effect of tunnelling on a structure is evaluated by applying the recorded nodal reactions to an undeformed mesh. Results from conventional numerical analyses of the problem are compared against those obtained using the mixed empirical-numerical approach. Results demonstrate the importance of imposing realistic inputs of greenfield displacements when evaluating structural response to tunnelling. |
| first_indexed | 2025-11-14T20:09:42Z |
| format | Article |
| id | nottingham-48604 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:09:42Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-486042020-05-04T19:52:09Z https://eprints.nottingham.ac.uk/48604/ Mixed empirical-numerical method for investigating tunneling effects on structures Haji, Twana Marshall, Alec M. Franza, Andrea The assessment of potential for building damage due to ground displacements caused by tunnelling is a global issue being faced by engineers. There is a two-way interaction between tunnelling and existing buildings; tunnel construction affects a building by inducing displacements in the soil underlying its foundation, and buildings influence tunnelling induced displacements via their weight and stiffness. Numerical analyses are widely used to investigate tunnelling and its impact on structures, however numerically predicted ground displacements are generally wider and shallower than those observed in practice. This paper presents a two-stage mixed empirical-numerical technique to estimate the effect of building stiffness on ground displacements due to tunnelling. In the first stage, greenfield soil displacements are applied to the soil model and the nodal reaction forces are recorded. In the second stage, the effect of tunnelling on a structure is evaluated by applying the recorded nodal reactions to an undeformed mesh. Results from conventional numerical analyses of the problem are compared against those obtained using the mixed empirical-numerical approach. Results demonstrate the importance of imposing realistic inputs of greenfield displacements when evaluating structural response to tunnelling. Elsevier 2018-03 Article NonPeerReviewed Haji, Twana, Marshall, Alec M. and Franza, Andrea (2018) Mixed empirical-numerical method for investigating tunneling effects on structures. Tunnelling and Underground Space Technology, 73 . pp. 92-104. ISSN 0886-7798 Tunnelling; Displacement prediction; Soil-structure interaction; Building response http://www.sciencedirect.com/science/article/pii/S0886779817305394 doi:10.1016/j.tust.2017.12.008 doi:10.1016/j.tust.2017.12.008 |
| spellingShingle | Tunnelling; Displacement prediction; Soil-structure interaction; Building response Haji, Twana Marshall, Alec M. Franza, Andrea Mixed empirical-numerical method for investigating tunneling effects on structures |
| title | Mixed empirical-numerical method for investigating tunneling effects on structures |
| title_full | Mixed empirical-numerical method for investigating tunneling effects on structures |
| title_fullStr | Mixed empirical-numerical method for investigating tunneling effects on structures |
| title_full_unstemmed | Mixed empirical-numerical method for investigating tunneling effects on structures |
| title_short | Mixed empirical-numerical method for investigating tunneling effects on structures |
| title_sort | mixed empirical-numerical method for investigating tunneling effects on structures |
| topic | Tunnelling; Displacement prediction; Soil-structure interaction; Building response |
| url | https://eprints.nottingham.ac.uk/48604/ https://eprints.nottingham.ac.uk/48604/ https://eprints.nottingham.ac.uk/48604/ |