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List of products by author: O. A. Melo-Duque
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The log-spiral torus geometry as shallow tunnel face collapse mechanism: a general-stability safety factor approach
Abstract: During soil tunnel excavation with a TBM, either Slurry-Shield or Earth Pressure Balance type, it is of utmost importance assess the pressure to be exerted on the face to ensure both the stability of the excavation and control surface settlements. In literature, there are reported mostly 2D or even 3D global stability proposals that do not accomplish kinematic constraints, that is, from a...
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Theoretical study of three dimensional face failure mechanism of shallow tunnels in soil
Abstract: During tunnel excavation in soil with TM, either Slurry-Shield or Earth Pressure Balance type, it is of utmost importance assess the pressure to be exerted on the face to ensure the stability of the excavation and control surface deformations. In literature there are reported mostly two-dimensional models that do not consider the spatial nature of the problem. On the other hand, the available...
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