Regulatory Steps Required for Wall Analysis and Design

• Definition of soil behavior for the considered limit state in the calculation model

• Total or effective stress analysis depending on drainage conditions

• Analysis using a numerical model

• Static-equivalent earthquake loading analysis for temporary excavations deeper than 15 m

• Calculation of minimum socket length

• Definition of construction stages

• Lateral displacement control of the wall in all construction stages

• Rotation control of existing structures behind the wall in all construction stages

• Determination of anchor free length based on the potential slip surface

• Calculation of anchor load-bearing capacity in cohesive or cohesionless soils

• Interface shear failure checks between soil and grout body for anchors in all construction stages

• Tendon pull-out failure checks for anchors/soil nails in all construction stages

• Interface shear failure checks between tendon and grout body for cable anchors in all construction stages

• Internal stability checks of anchors in all construction stages

• Structural design of reinforced concrete or steel wall sections

• Structural design of steel pipe struts

• Overall stability check of the wall

• Verification of sections with displacement measurements during construction

• Verification of sections with anchor test results