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List of products by author: M. Gutierrez
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A Comparison of Estimated and Measured Precast Segment Liner Loads Developed During Construction of twin EPB TBM...
Abstract: Design liner loads are commonly estimated using a variety of closed-form analytical methods as well as numerical (2D or 3D fnite element / fnite difference) modeling. A number of assumptions are made during liner load assessment about material parameters, including elastic modulus, shear strength, Poisson’s ratio, coeffcient of lateral earth pressure, etc. In addition, estimates of...
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Study on the Damage Evolution in Secondary Tunnel Lining Under the Combined Actions of Corrosion Degradation of...
Abstract: This article presents a numerical approach to study the damage evolution of secondary tunnel lining under the combined actions of corrosion of the preliminary support and the creep deformation of the surrounding rock. Three new models, including the tensile failure of corroding rock bolt, the yielding of corroding steel arch and the elastoplastic damage of concrete, were put forward and...
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Uncertainty Assessment of Fault Zones in 3D Geologic Models of Mountain Tunnels
Abstract: 3D geologic models are applied to predict the location and geometry of fault zones intersecting tunnel alignments in hard rock settings. The modelled fault zones inherit subjective (i.e., epistemic) and objective (i.e., aleatory) uncertainty from the various modelling inputs used, including observations and interpretations. An input-based, uncertainty propagation approach is developed to assess...
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