Modelling diaphragm walls using a time-dependent elasto-plastic material model

Key Points

• The central aim is to model diaphragm walls using a time-dependent elasto-plastic material model to enhance accuracy in simulations.
• Utilized a time-dependent elasto-plastic material model in modelling diaphragm walls.
• Applied the Finite Element Method (FEM) for simulations.
• Calibrated the Shotcrete material model based on laboratory testing under long-term conditions.
• Resolved a boundary value problem involving deep excavation with diaphragm walls and struts.
• Compared various modelling strategies.
• Successfully simulated continuous creep deformations with the Shotcrete model.
• Demonstrated the necessity of including reinforcement for accurately simulating tensile and compressive strengths.
• Highlighted differences between various modelling strategies.