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List of products by author: F. J. Macias
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Applicability of the new rock abrasivity test method (RIAT) to cutter life assessments in hard rock tunnel...
Abstract: Disc cutter consumption is of great importance when using the Tunnel Boring Machine (TBM) method for tunnelling in hard rock conditions. Abrasive wear is the most common process affecting cutter consumption; therefore good laboratory tests for rock abrasivity assessments are needed to carry out reliable cutter consumption assessments that enable project planning and control of the risk. A new...
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Project control by using the NTNU model methodology: The new Ulriken Tunnel
Abstract: The Tunnel Boring Machine (TBM) method has become a widely used method for hard rock tunnelling. The use of TBMs involves major investments and high levels of geological risk, furthermore, the method requires accurate predictions of TBM performance and costs in order to facilitate the control of risk and enable projects to avoid delays and budget overruns. During tunnel...
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The NTNU Prediction Model: A Tool for Planning and Risk Management in Hard Rock TBM Tunnelling
Abstract: 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....
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