Zur Modellwahl bei geotechnischen Randwertproblemen – Beispiele und kritische Anmerkungen

Model selection for geotechnical boundary value problems – examples and critical remarks. Numerical methods are widely employed in both research and practice to model boundary value problems. In conjunction with observations and measurements, they facilitate a deeper understanding of mechanical processes at the micro and macro scales. At the microscale, the interactions between particles, pore water, and gas are of particular interest. Here, the application of computed tomography is unlocking a new realm for soil mechanics. While numerical models for this scale are, to some extent, still under development, the combination of imaging and modelling enables an enhanced understanding of these fundamental processes. At the macro-scale, dynamic and time-dependent soil-structure interaction problems present particular challenges. The installation of structures typically induces large soil deformations and associated changes in the soil state, necessitating the use of specialized numerical techniques. Furthermore, cyclic loading leads to the accumulation of deformations, which limits the serviceability of the structure over time. These phenomena will be demonstrated through examples, followed by the formulation of critical remarks.

Subjects

Anchor

Model selection

Numerical methods

Partially saturated soils

Quay wall

Rover

Tension pile

DDC Class

624.1: Structural Engineering

Options

Zur Modellwahl bei geotechnischen Randwertproblemen – Beispiele und kritische Anmerkungen