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List of products by author: J. Grasmick
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Influence of slurry TBM parameters on ground deformation
Abstract: Tunnelling in soft ground can induce considerable ground deformation that poses a risk to existing infrastructure. To control ground deformation, pressurized-face tunnel boring machines (TBMs) (e.g., slurry shield and earth pressure balance (EPB)) are increasingly employed in urban areas. The effect of support pressures applied at the tunnel face and circumference have an important influence on...
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Probabilistic Subsurface Modelling in Tunnelling Applications: Suggestions for Use in Practice
Abstract: Tunnel projects are often dominated by spatial uncertainty in geological-geotechnical conditions. In recent years, there has been an increasing interest in the use of geostatistical or random field methods for probabilistic subsurface modelling in tunnelling applications. These methods provide the means for modelling the spatial variability and quantifying the spatial uncertainty in...
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Tunnel Process Control for Klang Valley Metro Phase 2 Using Machine Learning and Artificial Intelligence
Abstract: The Klang Valley Mass Railway Transit in Kuala Lumpur is mid-way through line 2 construction. The line faces several challenges including mixed face conditions, variable ground water and geologic hazards with high potential for large settlements and sink holes. Consequently, the influences on tunnel processes such as advance rates and cutter tool wear are hard to estimate. This paper presents...
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