Factor of Safety against Sliding Formula

Fx Copy
LaTeX Copy
Factor of Safety expresses how much stronger a system is than it needs to be for an intended load. Check FAQs
fs=(tan((Φi))tan((I)))
fs - Factor of Safety?Φi - Angle of Internal Friction of Soil?I - Angle of Inclination?

Factor of Safety against Sliding Example

With values
With units
Only example

Here is how the Factor of Safety against Sliding equation looks like with Values.

Here is how the Factor of Safety against Sliding equation looks like with Units.

Here is how the Factor of Safety against Sliding equation looks like.

0.8816Edit=(tan((78.69Edit))tan((80Edit)))
You are here -
HomeIcon Home » Category Engineering » Category Civil » Category Geotechnical Engineering » fx Factor of Safety against Sliding

Factor of Safety against Sliding Solution

Follow our step by step solution on how to calculate Factor of Safety against Sliding?

FIRST Step Consider the formula
fs=(tan((Φi))tan((I)))
Next Step Substitute values of Variables
fs=(tan((78.69°))tan((80°)))
Next Step Convert Units
fs=(tan((1.3734rad))tan((1.3963rad)))
Next Step Prepare to Evaluate
fs=(tan((1.3734))tan((1.3963)))
Next Step Evaluate
fs=0.881629500506991
LAST Step Rounding Answer
fs=0.8816

Factor of Safety against Sliding Formula Elements

Variables
Functions
Factor of Safety
Factor of Safety expresses how much stronger a system is than it needs to be for an intended load.
Symbol: fs
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Angle of Internal Friction of Soil
Angle of Internal Friction of Soil is a measure of the shear strength of soil due to friction.
Symbol: Φi
Measurement: AngleUnit: °
Note: Value should be between -180 to 180.
Angle of Inclination
Angle of Inclination is the angle measured from the horizontal surface of the wall or any object.
Symbol: I
Measurement: AngleUnit: °
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 in Stability Analysis of Infinite Slopes category

​Go Shear Strength of Cohesionless Soil
τs=σnmtan((φ))
​Go Normal Stress given Shear Strength of Cohesionless Soil
σnm=τstan((φ))
​Go Angle of Internal Friction given Shear Strength of Cohesionless Soil
φ=atan(τsσnm)
​Go Normal Stress given Shear Stress of Cohesionless Soil
σnm=𝜏Shearstresscot((I))

How to Evaluate Factor of Safety against Sliding?

Factor of Safety against Sliding evaluator uses Factor of Safety = (tan((Angle of Internal Friction of Soil))/tan((Angle of Inclination))) to evaluate the Factor of Safety, The Factor of Safety against Sliding formula is defined as the measure of safety margin used to assess the stability of slopes or structures on slopes against sliding failure. Factor of Safety is denoted by fs symbol.

How to evaluate Factor of Safety against Sliding using this online evaluator? To use this online evaluator for Factor of Safety against Sliding, enter Angle of Internal Friction of Soil i) & Angle of Inclination (I) and hit the calculate button.

FAQs on Factor of Safety against Sliding

What is the formula to find Factor of Safety against Sliding?
The formula of Factor of Safety against Sliding is expressed as Factor of Safety = (tan((Angle of Internal Friction of Soil))/tan((Angle of Inclination))). Here is an example- 0.88163 = (tan((1.37339958839408))/tan((1.3962634015952))).
How to calculate Factor of Safety against Sliding?
With Angle of Internal Friction of Soil i) & Angle of Inclination (I) we can find Factor of Safety against Sliding using the formula - Factor of Safety = (tan((Angle of Internal Friction of Soil))/tan((Angle of Inclination))). This formula also uses Tangent function(s).
Copied!