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Unit Cohesion is the shear strength property of a soil that is solely attributed to cohesive forces between soil particles. Check FAQs
cu=Fr-(Ntan((φ)))ΔL
cu - Unit Cohesion?Fr - Resisting Force?N - Normal Component of Force?φ - Angle of Internal Friction?ΔL - Curve Length?

Unit Cohesion given Resisting Force from Coulomb's Equation Example

With values
With units
Only example

Here is how the Unit Cohesion given Resisting Force from Coulomb's Equation equation looks like with Values.

Here is how the Unit Cohesion given Resisting Force from Coulomb's Equation equation looks like with Units.

Here is how the Unit Cohesion given Resisting Force from Coulomb's Equation equation looks like.

10.0019Edit=35Edit-(4.99Edittan((9.93Edit)))3.412Edit
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Unit Cohesion given Resisting Force from Coulomb's Equation Solution

Follow our step by step solution on how to calculate Unit Cohesion given Resisting Force from Coulomb's Equation?

FIRST Step Consider the formula
cu=Fr-(Ntan((φ)))ΔL
Next Step Substitute values of Variables
cu=35N-(4.99Ntan((9.93°)))3.412m
Next Step Convert Units
cu=35N-(4.99Ntan((0.1733rad)))3.412m
Next Step Prepare to Evaluate
cu=35-(4.99tan((0.1733)))3.412
Next Step Evaluate
cu=10.0018795416518Pa
LAST Step Rounding Answer
cu=10.0019Pa

Unit Cohesion given Resisting Force from Coulomb's Equation Formula Elements

Variables
Functions
Unit Cohesion
Unit Cohesion is the shear strength property of a soil that is solely attributed to cohesive forces between soil particles.
Symbol: cu
Measurement: PressureUnit: Pa
Note: Value should be greater than 0.
Resisting Force
Resisting Force is the force that counteracts the driving forces attempting to cause soil or structural failure.
Symbol: Fr
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Normal Component of Force
Normal Component of Force is the perpendicular component of force.
Symbol: N
Measurement: ForceUnit: N
Note: Value should be greater than 0.
Angle of Internal Friction
Angle of Internal Friction is the angle measured between the normal force and resultant force.
Symbol: φ
Measurement: AngleUnit: °
Note: Value should be greater than 0.
Curve Length
Curve Length is the total extent of a curve, measured along its path, quantifying its spatial reach or boundary span.
Symbol: ΔL
Measurement: LengthUnit: m
Note: Value should be greater than 0.
tan
The tangent of an angle is a trigonometric ratio of the length of the side opposite an angle to the length of the side adjacent to an angle in a right triangle.
Syntax: tan(Angle)

Other Formulas to find Unit Cohesion

​Go Unit Cohesion given Factor of Safety
cu=fsWx'L'dradial
​Go Unit Cohesion given Mobilized Shear Resistance of Soil
cu=fscm
​Go Unit Cohesion given Sum of Tangential Component
cu=(fsFt)-(ΣNtan(φπ180))L'

Other formulas in The Swedish Slip Circle Method category

​Go Radial Distance from Center of Rotation given Length of Slip Arc
dradial=360L'2πδ(180π)
​Go Arc Angle given Length of Slip Arc
δ=360L'2πdradial(π180)
​Go Moment of Resistance given Factor of Safety
Mr'=fsMD
​Go Driving Moment given Factor of Safety
MD=MRfs

How to Evaluate Unit Cohesion given Resisting Force from Coulomb's Equation?

Unit Cohesion given Resisting Force from Coulomb's Equation evaluator uses Unit Cohesion = (Resisting Force-(Normal Component of Force*tan((Angle of Internal Friction))))/Curve Length to evaluate the Unit Cohesion, Unit Cohesion given Resisting Force from Coulomb's Equation formula is defined as the shear strength of cohesive soils due to molecular attraction between particles, considering resistance force. Unit Cohesion is denoted by cu symbol.

How to evaluate Unit Cohesion given Resisting Force from Coulomb's Equation using this online evaluator? To use this online evaluator for Unit Cohesion given Resisting Force from Coulomb's Equation, enter Resisting Force (Fr), Normal Component of Force (N), Angle of Internal Friction (φ) & Curve Length (ΔL) and hit the calculate button.

FAQs on Unit Cohesion given Resisting Force from Coulomb's Equation

What is the formula to find Unit Cohesion given Resisting Force from Coulomb's Equation?
The formula of Unit Cohesion given Resisting Force from Coulomb's Equation is expressed as Unit Cohesion = (Resisting Force-(Normal Component of Force*tan((Angle of Internal Friction))))/Curve Length. Here is an example- 11.37547 = (35-(4.99*tan((0.173311194723004))))/3.412.
How to calculate Unit Cohesion given Resisting Force from Coulomb's Equation?
With Resisting Force (Fr), Normal Component of Force (N), Angle of Internal Friction (φ) & Curve Length (ΔL) we can find Unit Cohesion given Resisting Force from Coulomb's Equation using the formula - Unit Cohesion = (Resisting Force-(Normal Component of Force*tan((Angle of Internal Friction))))/Curve Length. This formula also uses Tangent (tan) function(s).
What are the other ways to Calculate Unit Cohesion?
Here are the different ways to Calculate Unit Cohesion-
  • Unit Cohesion=Factor of Safety*(Weight of Body in Newtons*Distance between LOA and COR)/(Length of Slip Arc*Radial Distance)OpenImg
  • Unit Cohesion=Factor of Safety*Mobilized Shear Resistance of SoilOpenImg
  • Unit Cohesion=((Factor of Safety*Sum of All Tangential Component in Soil Mechanics)-(Sum of all Normal Component*tan((Angle of Internal Friction*pi)/180)))/Length of Slip ArcOpenImg
Can the Unit Cohesion given Resisting Force from Coulomb's Equation be negative?
No, the Unit Cohesion given Resisting Force from Coulomb's Equation, measured in Pressure cannot be negative.
Which unit is used to measure Unit Cohesion given Resisting Force from Coulomb's Equation?
Unit Cohesion given Resisting Force from Coulomb's Equation is usually measured using the Pascal[Pa] for Pressure. Kilopascal[Pa], Bar[Pa], Pound Per Square Inch[Pa] are the few other units in which Unit Cohesion given Resisting Force from Coulomb's Equation can be measured.
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