Print Email Facebook Twitter On the effects of the TBM-shield body articulation on tunnelling in soft soil Title On the effects of the TBM-shield body articulation on tunnelling in soft soil Author Festa, D. Broere, W. Bosch, J.W. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2013-12-31 Abstract When a Tunnel Boring Machine (TBM) is driven in soft soil, the TBM-shield constantly interacts with the surrounding soil profile excavated by the cutting wheel. The interaction pattern of shield-soil interface displacements determines compression and extension sectors in the surrounding soil. Soil compression is generated when the shield displaces the excavated profile in outward direction; soil extension happens when the shield fits inside that profile. This aspect of TBM behaviour, referred to as shield-soil kinematical interaction, has been demonstrated in a recent study investigating the monitoring data from the Hubertus tunnel in The Hague. The TBM used at the Hubertus tunnel was not equipped with a shield-body articulation. The articulation, designed to limit the undesired shield-soil interactions of the kind described, was present in the TBMs used at the North-South metro line in Amsterdam. This study aims to quantify the consequences of using a shield articulation in terms of shield-soil kinematical interactions. The study, comparing the results from the Hubertus and the North-South line tunnels, revealed remarkable differences, although other discriminating aspects have to be accounted for. The fundamental understanding of the kinematical interactions is crucial to building reliable numerical models for TBM driving in soft soil Subject TBMkinematicsshield-articulationinteraction To reference this document use: http://resolver.tudelft.nl/uuid:17bf3e8a-4637-47a6-84bc-59c1cd0eaf09 Publisher Aedificatio Publishers ISBN 9783942052016 Source EURO:TUN 2013 Proceedings of the 3rd International Conference on Computational Methods in Tunnelling and Subsurface Engineering, Bochum (Germany) 17-19 April, 2013; Authors version Part of collection Institutional Repository Document type conference paper Rights (c) 2013 The Authors Files PDF 305689.pdf 1009.28 KB Close viewer /islandora/object/uuid:17bf3e8a-4637-47a6-84bc-59c1cd0eaf09/datastream/OBJ/view