Abstract: The upper‐ and lower‐bound theorems of classical plasticity are used to examine the undrained stability of a shallow square tunnel under conditions of plane‐strain loading. Rigorous bounds on the loads needed to support ...

Abstract: Soil-structure interaction is traditionally simplified to prescribed boundary conditions or modeled by joint elements. Both of these approaches are limited to small and continuous relative displacements at the interface. ...

Abstract: This paper applies numerical limit analyses to evaluate the undrained stability of surface footings on nonhomogeneous and layered clay deposits under the combined effects of vertical, horizontal, and moment (

Abstract: Sinkholes are surface depressions or shafts resulting from the collapse of a submerged cavity in soil. The cavities that lead to sinkholes form as a result of underlying geology in limestone areas, or as a result of human ...

Abstract: Short-term undrained stability often controls the design of braced excavations in soft clays. This paper summarizes the formulation of numerical limit analyses that compute rigorous upper and lower bounds on the exact ...

Abstract: This article presents an automatic Newton‐Raphson method for solving nonlinear finite element equations. It automatically subincrements a series of given coarse load increments so that the local load path error in the ...

Abstract: Free-drift batch reactor experiments using calcite (limestone,