Project Data
| Parameter | Value | Unit |
|---|
Design method checks
LE 1.x - Limit Equilibrium. Classical preliminary checks solving for embedment from pressure equilibrium. 1.1 Cantilever uses Blum's simplified rotation-point method with reverse resistance collapsed to a lumped reaction. 1.2 Single-propped FES uses free-earth-support equilibrium about the prop. These methods report embedment, reactions, M/V actions; they do not predict deflection or ground movement.
SR 2.x - Subgrade Reaction. Approximate Winkler soil-structure interaction. The wall is a beam on independent horizontal springs; SR 2.2 caps the springs at active/passive pressure limits. This is not a coupled continuum analysis and should be benchmarked for final design use.
Coupled 3.x - Coupled Flexibility. Planned methods will use interconnected flexibility terms to approximate soil continuity below excavation level. Not available in this version.
Verification examples are loadable per method via the Load Example dropdown - each carries its own reference result block so the Summary tab Diff column auto-validates against published data.
Legal notice. The full StructCalc.online terms and legal notice are provided on the StructCalc home page. These tools are for independent verification by qualified engineers and are not a primary design tool.
Blank on open. Use the Examples dropdown to populate a method-specific verification dataset.
Soil Types
| # | ID | Name | γ | Eh | Ko | Ka | Kp | c | Kac | Kpc | dEh/dy | ν | Del |
|---|
γ kN/m³, Eh/kh kN/m² or kN/m³ style stiffness input. Ka/Kp may be direct report values.
Soil Profile
| # | Top elev | Active type | Passive type | Del |
|---|
Layer tops are elevations. Soil type IDs refer to the Soil Types table.
Water Conditions
| Parameter | Value | Unit |
|---|
Water profile support is stored in the data file; the current solver uses water levels and pressure interpolation where available.
Surcharges
| # | ID | Elev | Side | Dist | Length | Width | Near | Far | Active | Del |
|---|
Side = active/passive. Near/Far are kN/m².
Ties / Anchors
| # | ID | Elev | Spacing | Area | E | Free L | Incl. | Prestress | Active | Del |
|---|
Horizontal stiffness is derived from EA/L/spacing × cos²θ.
Construction Stages
| # | No. | Action | Value / ID | Elev | Side | Analyse | Del |
|---|
Actions currently parsed: changeEI, applySurcharge, excavate, fill, installStrut, applyWaterProfile, changeSoil.
Summary
| Quantity | Calc | Reference | Diff |
|---|
Peak comparison uses the embedded PFC reference where present.
Result Grid
| Elev. | y mm | rot | M | V | p | kh | Soil R | Tie R | Ref M | Ref V | Ref p |
|---|
Calculated and reference ordinates are matched by elevation where possible.
Output
Result Data
Run the selected analysis first, then copy the complete result grid as comma-separated data for pasting into Excel or another spreadsheet.
One row per analysis node.CSV columns
| Column | Contents |
|---|---|
| elev | Node elevation |
| disp_mm / rotation | Wall displacement and rotation |
| moment / shear | Calculated wall actions |
| net_pressure / kh | Net pressure and spring stiffness |
| soil_reaction / tie_reaction | Soil and tie reactions |
| spring_state | Current soil-spring state where applicable |
Output commands are kept on this tab to match the FrameCalc workflow.