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R. Wenighofer, N. Eder, V. Speckmoser, M. Villeneuve, L. Winkler, R. Galler:
"Adaptive and parameterized 3D BIM model for the tunnel tender and excavation phase";
angenommen für Geomechanics and Tunneling 15 (2022), 3; S. 1 - 21.

Building information modelling is a frequently discussed topic in tunnelling since it promises less loss of information and reduced life-time cost of underground infrastructure. There is still some way to go as standardisation in this sector is immature, the implementation of 3D BIM models are developed for pilot cases of tunnelling only, and data transfer between software tools is a challenge. The long linear structures of tunnels make a specific approach of parameterised and adaptive modelling necessary to meet the re-quirements of repetitive construction elements and the natural differences of forecast and actual excavation conditions. This approach renders the matching of construction elements in the model and service items feasible for determining quantities for the tender and billing in tunnel projects. In this paper we show that only 57% of service items can actually be linked to a physical item in traditional 2D design and we highlight the need to consider how to incorporate these items into a BIM model. We also use a case study to pro-pose an approach for parameterised and adaptive modelling of repetitive construction elements and show a way of a continuous data transfer from the forecast tunnelling class distribution via 3D BIM modelling to a billing software without data loss.