CUED Publications database

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

Giardina, G and DeJong, MJ and Mair, RJ (2015) Interaction between surface structures and tunnelling in sand: Centrifuge and computational modelling. Tunnelling and Underground Space Technology, 50. pp. 465-478. ISSN 0886-7798

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Abstract

© 2015 The Authors. 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.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div D > Geotechnical and Environmental
Div D > Structures
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:05
Last Modified: 14 Sep 2017 01:27
DOI: