Effects of Soil Deposition on the Initial Stress State in Model Tests Experimental Results and FE Simulation -- Demonstrator Experiments on Significant Effects During Pile Installation -- On Soil Deformation and Stress Redistribution Around Pressed-in and Vibrated Displacement Pile Tips -- Modelling of Soil Structure Interaction by Applying a Hypoplastic Material Behaviour within Mortar Contact Formulation -- Vibro-Injection Pile Installation in Sand: Part I - Interpretation as Multi-Material Flow -- Vibro-Injection Pile Installation in Sand: Part II - Numerical and Experimental Investigation -- Numerical Modelling of the Effective-stress Evolution in Saturated Soilaround a Vibrating Pile Toe -- A Numerical Approach to the Solution of Dynamic Boundary Value Problems for Fluid-Saturated Solids -- Neohypoplasticity - Estimation of Small Strain Stiffness -- Improved Integration of High-cycle Accumulated Strain Using Hierarchicaland EAS Finite Elements -- Simulation of Soils under Rapid Cyclic Loading Conditions -- Experimental Strain Response-Envelopes of Granular Materials for Monotonous and Low-Cycle Loading Processes.