CUED Publications database

Influence of building characteristics on tunnelling-induced ground movements

Ritter, S and Giardina, G and Dejong, MJ and Mair, RJ (2017) Influence of building characteristics on tunnelling-induced ground movements. GEOTECHNIQUE, 67. pp. 926-937. ISSN 0016-8505

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This paper investigates the interaction mechanisms between surface structures and tunnelling-induced ground movements through centrifuge testing. Although numerous studies have considered this soil-structure interaction problem, previous experiments have neglected important building characteristics, and field data inherently contains numerous uncertainties related to the soil, the structure and the tunnelling procedure. Consequently, interpretation of results and validation of computational models can be problematic. In this study, tunnelling beneath 3D printed structural models with varying building characteristics (i.e. position, length and facade openings) was simulated in a centrifuge. The experimental results demonstrate that the tunnelling induces soil displacements at surface and subsurface that are notably altered due to nearby structures. Specifically, different amounts of vertical and horizontal ground movements, soil dilation and widening of settlement troughs were observed. Building distortions and horizontal building strains were also affected by the relative position of the building to the tunnel, the building length and the amount of facade openings. The experimental results provide important data to evaluate current design methods and to verify computational models.

Item Type: Article
Uncontrolled Keywords: centrifuge modelling soil/structure interaction tunnels & tunnelling
Divisions: Div D > Geotechnical and Environmental
Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:26
Last Modified: 21 Jun 2018 02:34