Abstract: Contrary to the conventional size effect on rock strength, the reverse size effect refers to a rise in the unconfined compressive strength of small cylindrical rock specimens with an increase in the diameter. The current ...

Abstract: Dilatancy (volumetric expansion) during yielding is an important aspect of geomaterial behavior that can be mathematically defined using a dilation model. A common way of modeling dilation has been to use a dilation angle, ...

Abstract: Model tests and field measurements were carried out to study the mechanical behavior of cobble-rich soil in response to shield tunneling. In particular, an experimental investigation was carried out using a laboratory-scale ...

Abstract: The support pressure at the tunnel face of earth pressure balance (EPB) shield machines is usually assumed to be uniform from the crown to the invert, which is a notable simplification of reality. In this study, the effects ...

Abstract: Urban soft-ground tunneling projects involve significant risks related to the spatial variability and uncertainty in geotechnical parameters. However, standard practice typically does not incorporate spatial trends into ...