Journal
TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY
Volume 38, Issue -, Pages 487-496Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tust.2013.08.010
Keywords
TBM; Tunnel boring machine; Cutting forces; Remote cutter monitoring; Koralm tunnel
Funding
- Austrian Research Promotion Agency (FFG) [E!5514 EMSAT]
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Loading of a disk cutter on tunnel boring machines (TBM) is usually estimated from global machine thrust. In order to be able to measure cutting forces of an individual disk cutter, a new measurement method was developed and published in a previous paper (Entacher et al., 2012). This study presents the implementation process of the measurement method at the first TBM of the Austrian Koralm tunnel. Results show that peak forces are a multiple of average forces and that the distribution of forces across the tunnel face can be very irregular. The occurring forces are in very good agreement with geological features of the tunnel face such as highly fractured zones and orientation of schistosity. (C) 2013 Elsevier Ltd. All rights reserved.
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