How is sheet pile embedment depth calculated by free-earth support?

For a cantilever sheet pile, moments are taken about the anchor (if anchored) or about the theoretical point of rotation. Setting ΣM = 0 gives a cubic or higher-degree polynomial in embedment depth D. For granular soils: D ≈ 1.2 to 1.5 × theoretical depth for safety. The design moment Mmax is used with pile section modulus tables per ArcelorMittal or US Steel specifications.

What factor of safety is used for sheet pile design?

NAVFAC DM 7.2 recommends increasing theoretical embedment depth by 20–40% (effectively FS = 1.5–2.0 on passive resistance) for permanent sheet pile walls. Eurocode 7 uses partial material factors on c' and tan(φ'). Temporary works typically use FS = 1.2–1.5.

Sheet Pile Depth Calculator (Free-Earth Support)

Determine minimum sheet pile embedment depth using the free-earth support method with moment equilibrium and calculate maximum bending moment for pile selection.

2D stress state at a point. All stresses in MPa.

σx — Normal Stress X (MPa)

σy — Normal Stress Y (MPa)

τxy — Shear Stress (MPa)

⚙ Mechanical Note: Results are based on standard textbook formulas and ISO/AASHTO references. Always verify critical designs with applicable codes (ISO 898, AASHTO 1993, AISC, Eurocode 3) and a qualified engineer.

How It Works

Determine minimum sheet pile embedment depth using the free-earth support method with moment equilibrium and calculate maximum bending moment for pile selection

Each component has a specific meaning:

Free-earth support method — The free-earth support method recorded for the patient or scenario being assessed.

Note: Interpret the sheet pile depth result against the clinical thresholds and context described above.

How to Use

Enter the free-earth support method for the patient or scenario you are assessing. Determine minimum sheet pile embedment depth using the free-earth support method with moment equilibrium and calculate maximum bending moment for pile selection. Use the sheet pile depth result to inform your clinical assessment.

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Sheet Pile Depth Calculator (Free-Earth Support)

How It Works

How to Use

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Frequently Asked Questions

How is sheet pile embedment depth calculated by free-earth support?

What factor of safety is used for sheet pile design?