Free Braced Excavation Analysis

Design the bracing & sheet piles for a retaining wall.

Uses the Net Available passive resistance method (Burland) & Eurocode 7. Calculate earth pressures for a retaining wall. Considers drained conditions & water at ground level.
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This analysis uses the Fixed earth approach to resolve the minimum pile toe level, the embedment is increased 20% to provide the fixed earth resultant force.
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Update soil profile
Excavation Design
Excavation width m
Strut depth m
Check that strut depth is above excavation depth.
Base depth m
Check that soil is deep enough, base cannot be deaper than toe, max depth of 30m.
Pile toe depth m
Max depth of 30m & check that soil is deep enough.
Advanced options
Include a surcharge alongside the wall
Surcharge kN/m2
Enter a number between 0 and 150.
Manual overwrite wall properties
Steel yield strength N/mm2
Youngs Modulus E GPa
Enter a number between 0 and 750.
Moment of inertia I cm4
Enter a number between 0 and 1000000.
Excavation support reactions:
These are the predicted forces acting on your excavation supports.
Strut reaction
Max passive soil reaction
Excavation bracing results:
Select an excavation bracing size & we will automatically generate results here.
Bending Moment Diagram
Shear Force Diagram
Wall Deflection Diagram
This analysis assumes that supporting stuts are rigid and do not act as springs. Stiffness of wall can be modified in advanced settings.
Sheet pile resultant forces:
These are the predicted effects on your sheet pile wall.
Max predicted Min predicted
Bending Moment
Shear force
Deflection*
*Wall properties (deflection): E = GPa I =cm4
Select a sheet piling size to automatically generate results here

How does this analysis work?

Calculation validation

Answer 1: 5.6m
Answer 2: 395kN

Edit Geology

Select dropdown estimates for geological properties from our geotechnical database or enter your own properties. Estimated properties are for feasibility study only.