K-Réa v4

KEY POINTS OF K-REA V4

• ULS checks extended to double-wall projects (including Kranz check).
• Direct processing without iterations of double-wall projects, without limitation of the number of linking anchors.
• Automated processing of bank and berm effects using the kinematic approach with the yield design method.
• Possibility to impose active and passive soil pressure diagrams and water pressure diagrams during the phasing.
• Automatic correction of the inclination of counter passive earth pressure (LEM method)
• Management of the initial phase:
  o    Possibility to consider a non-horizontal profile of the natural land.
  o    Define possible initial loads (eg: existing building nearby).
  o    Consideration of initial hydraulic gradient (eg: initial upward flow).
• Possibility to consider a hydraulic gradient defined point by point through the water pressure or the hydraulic potential.
• All loads can be changed or disabled during phasing.
• Consideration of the screening effect of Boussinesq loads.
• Automated processing of combinations of loads applied onto the wall and the soil.
• Generalization of support conditions and anchoring.
• New type of support: circular lierne, surface support and surface linking support (slab type).
• Preload can be defined for all supports.
• Anchors’ preload can be modified during phasing.
• Management of elastoplastic behaviour for all types of support.
• Consideration of the earthquake: Mononobe-Okabé (pseudo-static method) and yield design method.
• Consideration of the Eurocode 7 design approaches (1, 2 and 3).
• Consideration of a minimum active earth pressure and a maximum passive earth pressure for every soil layer.
• Taking into account the over-excavation (Δa) on either side of the wall.
• New results available: axial force throughout the wall (Nz) and vault pressure (Nθ).