Software Support

A deep excavation in Berlin sand is a benchmark problem for the Cysoil and PH (plastic hardening) soil models in FLAC. The simulation follows the construction sequence: install diaphragm wall, dewater, excavate in four stages and install pre-tensioned anchors at each stage. The properties for the Cysoil and PH models are calibrated to provide a reasonable fit to field measurements for wall deflection.

Keywords:

• deep excavation
• Berlin sand
• Cysoil model
• PH model
• Diaphragm wall
• calibration
• field measurements
• wall deflection

Materials:

• Sand
• Soil

Analyses:

• Fluid Flow
• Static