CUED Publications database

Centrifuge modelling of tunneling-induced settlement damage to 3D-printed surface structures

Ritter, S and Giardina, G and DeJong, MJ and Mair, RJ (2016) Centrifuge modelling of tunneling-induced settlement damage to 3D-printed surface structures. In: World Tunneling Congress 2016, 2016-4-22 to 2016-4-28, San Francisco pp. 11-20..

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For urban tunneling projects it is essential to predict and prevent building damage. Although various case studies and experiments have shown that buildings considerably modify greenfield soil movements, widely accepted damage assessment methods neglect this soil-structure interaction and simplify structures as linear elastic beams. This paper summarizes an experimental investigation of the response of more realistic structures to tunneling-induced deformations. Small scale structural models with facade openings and brittle material properties were 3D printed and tested in a geotechnical centrifuge. Soil and structure displacement data were obtained by image-based measurement. Results demonstrate that structures notably mitigate differential greenfield ground displacements. It is also shown that maximum soil settlements, horizontal soil displacements beneath the structure and structural damage in the form of cracking significantly depend on the position of the structure in the settlement profile. The results provide a basis from which to predict building settlement response with greater certainty.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Divisions: Div D > Geotechnical and Environmental
Div D > Structures
Depositing User: Unnamed user with email
Date Deposited: 17 Jul 2017 19:27
Last Modified: 22 Oct 2020 03:03