A high-cycle accumulation model for clay and its application to monopile foundations

P Staubach, J Machaček, M Tafili, T Wichtmann - Acta Geotechnica, 2022 - Springer
A high-cycle accumulation (HCA) model predicting the accumulation of permanent strain or
excess pore water pressure in clay under a large number of load cycles is presented. Data …

On the automatic parameter calibration of a hypoplastic soil model

J Machaček, P Staubach, CEG Tavera, T Wichtmann… - Acta Geotechnica, 2022 - Springer
This paper presents an approach for the automatic parameter calibration (AC) of a
hypoplastic constitutive soil model. The calibration software developed in this work simplifies …

Monopile installation in clay and subsequent response to millions of lateral load cycles

P Staubach, L Tschirschky, J Machaček… - Computers and …, 2023 - Elsevier
The installation-induced changes in the state of clayey soils caused by pile driving
processes are investigated numerically. Hydro-mechanically coupled Coupled-Eulerian …

Novel approach to apply existing constitutive soil models to the modelling of interfaces

P Staubach, J Machaček… - International Journal for …, 2022 - Wiley Online Library
A novel scheme to apply constitutive (continuum) soil models to the mechanical modelling of
soil‐structure interfaces is presented. Opposite to existing approaches, all normal stress …

Long-term response of piles to cyclic lateral loading following vibratory and impact driving in water-saturated sand

P Staubach, J Machaček, B Bienen… - Journal of Geotechnical …, 2022 - ascelibrary.org
The influence of the pile installation by vibratory or impact driving on the response to
subsequent cyclic lateral loading, as faced in the offshore environment, is investigated …

Mortar contact discretisation methods incorporating interface models based on Hypoplasticity and Sanisand: Application to vibratory pile driving

P Staubach, J Machaček, T Wichtmann - Computers and Geotechnics, 2022 - Elsevier
A segment-based mortar contact discretisation technique for the analysis of hydro-
mechanically coupled dynamic processes with quadratically interpolated finite elements and …

Strain-dependent slope stability for earthquake loading

C Schmüdderich, J Machaček… - Computers and …, 2022 - Elsevier
Assessment of the seismic slope stability in terms of a factor of safety (FoS) is often
addressed using pseudo-static approaches neglecting material-induced failure and the role …

Deep vibratory compaction simulated using a high-cycle accumulation model

P Staubach, I Kimmig, J Machaček, T Wichtmann… - Soil Dynamics and …, 2023 - Elsevier
Deep vibratory compaction (DVC) is an effective ground improvement method for granular
soils in a loose initial state. An efficient numerical approach to simulate the whole process of …

[PDF][PDF] Contributions to the numerical modelling of pile installation processes and high-cyclic loading of soils

P Staubach - Publications of the Chair of Soil Mechanics …, 2022 - scholar.archive.org
This work presents contributions to the numerical modelling of the installation process and
subsequent high-cyclic loading of piles, such as relevant for pile foundations for offshore …

Long-term settlement of dynamically loaded shallow foundations

P Staubach, D Wegener, J Machaček… - International Journal of …, 2024 - ascelibrary.org
Analytical approaches to determine the long-term settlement of shallow foundations
subjected to dynamic cyclic loading with a large number of cycles (millions) are presented …