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Civil Engineering

Negative skin frictions for Cohesive less soil Calculator

Civil Engineering

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Negative skin frictions for Cohesive less soil

Equation and meaning

\[Q_n \cdot f = P \cdot force_per_unit_surface_length_of_pile\]

Total negative skin frictions for Cohesive less soil

Variables in this formula

f — F
Enter this value unless it is the selected unknown.
force_per_unit_surface_length_of_pile — Force Per Unit Surface Length Of Pile
Enter this value unless it is the selected unknown.
P — Power
Power SI unit: W
Q_n — Q N
Enter this value unless it is the selected unknown.
Equation 2

Equation and meaning

\[Q_{n} \cdot f = P \cdot \frac{1}{2} \cdot K \cdot \gamma \cdot {D_{n}}^{2} \cdot \tan\left(\delta\right)\]

Total negative skin frictions for Cohesive less soil

Variables in this formula

delta — Delta
Enter this value unless it is the selected unknown.
D_n — D N
Enter this value unless it is the selected unknown.
f — F
Enter this value unless it is the selected unknown.
gamma — Gamma
Enter this value unless it is the selected unknown.
K — K
Enter this value unless it is the selected unknown.
P — Power
Power SI unit: W
Q_n — Q N
Enter this value unless it is the selected unknown.

How to use this calculator

  1. Leave one value emptyThe empty field is automatically treated as the unknown.
  2. Enter known values and unitsChoose N, kgf, dyn, SI or another compatible unit when available.
  3. Review the automatic answerThe result appears immediately and is substituted back into the formula to check the residual.
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