University of Cambridge > > Engineering Department Geotechnical Research Seminars > The response of buildings to excavation-induced movements

The response of buildings to excavation-induced movements

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If you have a question about this talk, please contact Zelda Stuck.

Tunnelling and ground excavation activities cause ground movements that may affect structures adjacent to the construction. Mair et al (1996) proposed a framework for assessing the potential of causing building damage using deflection ratios and horizontal strains of the greenfield. Potts and Addenbrooke (1997) suggested the modification factor approach to include the influence of building stiffness on tunnelling-induced movements. Can the response of buildings adjacent to excavations be quantified in a similar way?

In this presentation, some findings from the research study on the influence and impact of deep excavations on adjacent buildings will be presented. Using finite element studies, a method to assess the influence of building stiffness in deep excavations is suggested. This involves the estimate of actual building stiffness and the use of design guidance developed from the finite element models. Finally, the analysed response of two buildings in Singapore under the influence of excavation and tunnelling will be presented to support the findings from the numerical studies.

This talk is part of the Engineering Department Geotechnical Research Seminars series.

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