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Interaction between surface structures and tunnelling in sand:centrifuge and computational modelling


Reference:

Giardina, G., DeJong, M. J. and Mair, R. J., 2015. Interaction between surface structures and tunnelling in sand:centrifuge and computational modelling. Tunnelling and Underground Space Technology, 50, pp. 465-478.

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Official URL:

http://dx.doi.org/10.1016/j.tust.2015.07.016

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Abstract

Tunnelling in urban areas requires a careful estimation of the consequence of soil settlements on existing buildings. In this paper the interaction between the excavation of a tunnel in sand and surface structures is investigated. A two dimensional finite element model is presented and validated through comparison with centrifuge test results, both with and without structures. The model is then used to perform a sensitivity study on the effect of building weight on soil movements and structural deformations. The results of the validation indicate that assuming a no-tension interface between the soil and the structure is essential to capture the soil-structure interaction that was experimentally observed. The parametric analyses show that the relation between the building stiffness and the tunnelling-induced deformations depends on the building weight.

Details

Item Type Articles
CreatorsGiardina, G., DeJong, M. J. and Mair, R. J.
DOI10.1016/j.tust.2015.07.016
Related URLs
URLURL Type
http://www.scopus.com/inward/record.url?scp=84942569916&partnerID=8YFLogxKUNSPECIFIED
http://dx.doi.org/10.1016/j.tust.2015.07.016Free Full-text
Uncontrolled Keywordscentrifuge testing,numerical modelling,settlements,soil-structure interaction,tunnelling
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
RefereedYes
StatusPublished
ID Code53788

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