Centrifuge modelling of building response to tunnel excavation


Ritter, S., Giardina, G., DeJong, M. J. and Mair, R. J., 2017. Centrifuge modelling of building response to tunnel excavation. International Journal of Physical Modelling in Geotechnics

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Understanding the building response to tunnelling-induced settlements is an important aspect of urban tunnelling in soft ground. Previous centrifuge modelling research demonstrated significant potential to study this tunnel–soil–structure interaction problem. However, these recent studies were limited by simplified building models, which might result in uncertainties when interpreting the building performance to tunnelling subsidence. This paper presents an experimental modelling procedure and the results of a series of centrifuge tests, involving relatively complex surface structures subjected to tunnelling in sand. Powder-based three-dimensional (3D) printing was adopted to fabricate building models with realistic layouts, facade openings and foundations. The 3D printed material had a Young's modulus and a brittle response similar to historic masonry. Modelling effects and boundary conditions are quantified. The good agreement between the experimentally obtained results and previous research demonstrates that the soil–structure interaction during tunnel excavation is well replicated. The experimental procedure provides a framework to quantify how building features affect the response of buildings to tunnelling subsidence.


Item Type Articles
CreatorsRitter, S., Giardina, G., DeJong, M. J. and Mair, R. J.
DepartmentsFaculty of Engineering & Design > Architecture & Civil Engineering
ID Code56671


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