// multi-utility computation suite · offline · instant · precise
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eng.rankine-active-earth-pressure Calculator
Calculates the Rankine active earth pressure distribution and resultant force on a retaining wall from soil properties. The active earth pressure coefficient Ka = (1 − sin φ)/(1 + sin φ) — for dense sand (φ = 40°), Ka = 0.22 and the soil provides significant wall support.
Inputs
Gamma Kn M3
Body or object weight. For health calculators, usually in kg or lbs.
Phi Deg
Reference formula or conversion factor shown for context.
H M
Vertical measurement. For health calculators, typically standing height without shoes.
C Kpa
Reference formula or conversion factor shown for context.
Results
active earth pressure coeff Ka
Reference formula or conversion factor shown for context.
pressure at top of wall (kPa)
The value at the specified point or condition.
pressure at base of wall (kPa)
The value at the specified point or condition.
resultant active force Pa (kN/m)
The final computed result based on the given inputs.
tension crack depth zc (m)
The tensile force or stress — the pulling force that stretches the material. Must stay below the material's tensile strength.