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The NTNU Prediction Model: A Tool for Planning and Risk Management in Hard Rock TBM Tunnelling

The NTNU Prediction Model: A Tool for Planning and Risk Management in Hard Rock TBM Tunnelling

pap585

P. D. Jakobsen / F. J. Macias / A. Bruland / S. Log / E. Grøv

In the tunnelling industry, the prediction of TBM performance and costs is an important issue for planning and risk management at the design stages. The NTNU prediction model is an objective tool that has been used by several parties in the tunnelling industry. The model can be used for estimating the excavation rate and costs, as well as planning and risk assessment of hard rock TBMs projects. The model is mainly used in the planning stage for hard rock TBM tunnelling projects. However during the last few years, the model has been used as a tool for the resolution of disputes between clients and contractors during the construction stage. In this paper, a study of the NTNU prediction model for hard rock TBMs is carried out in a case of 3.4 m diameter open hard rock TBM. The NTNU prediction model is validated for the present project as a good tool for project planning, risk management and useful tool in assessing claims.

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Year2014
CityFoz do Iguaçu
CountryBrazil