期刊
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
卷 50, 期 -, 页码 465-478出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tust.2015.07.016
关键词
Centrifuge testing; Numerical modelling; Settlements; Soil-structure interaction; Tunnelling
资金
- Engineering and Physical Sciences Research Council of the United Kingdom [EP/K018221/1]
- Engineering and Physical Sciences Research Council [EP/K018221/1] Funding Source: researchfish
- EPSRC [EP/K018221/1] Funding Source: UKRI
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. (C) 2015 The Authors. Published by Elsevier Ltd.
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