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Pore Pressure Ratio given Unit Weight Formula

GoPore Pressure Ratio given Horizontal Width Formula

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Pore pressure ratio is a crude way of describing pore-water conditions in a slope stability analysis. Check FAQs

r u = (\frac{F u}{γ \cdot z})

r_u - Pore Pressure Ratio?F_u - Upward Force in Seepage Analysis?γ - Unit Weight of Soil?z - Height of Slice?

Pore Pressure Ratio given Unit Weight Example

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With units

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Here is how the Pore Pressure Ratio given Unit Weight equation looks like with Values.

Here is how the Pore Pressure Ratio given Unit Weight equation looks like with Units.

Here is how the Pore Pressure Ratio given Unit Weight equation looks like.

0.9794 = (\frac{52.89}{18 \cdot 3})

0.9794 = (\frac{52.89kN/m²}{18kN/m³ \cdot 3m})

0.9794 = (\frac{52.89}{18 \cdot 3})

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Pore Pressure Ratio given Unit Weight Solution

Follow our step by step solution on how to calculate Pore Pressure Ratio given Unit Weight?

FIRST Step Consider the formula

r u = (\frac{F u}{γ \cdot z})

Next Step Substitute values of Variables

∴

r u = (\frac{52.89kN/m²}{18kN/m³ \cdot 3m})

Next Step Convert Units

∴

r u = (\frac{52890Pa}{18000N/m³ \cdot 3m})

Next Step Prepare to Evaluate

∴

r u = (\frac{52890}{18000 \cdot 3})

Next Step Evaluate

∴

r u = 0.979444444444444

LAST Step Rounding Answer

∴

r u = 0.9794

Pore Pressure Ratio given Unit Weight Formula Elements

Variables

Pore Pressure Ratio

Pore pressure ratio is a crude way of describing pore-water conditions in a slope stability analysis.

Symbol: r_u

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Pore Pressure Ratio

Upward Force in Seepage Analysis

Upward Force in Seepage Analysis is due to seepage water.

Symbol: F_u

Measurement: PressureUnit: kN/m²

Note: Value should be greater than 0.

Formulas to find Upward Force in Seepage Analysis

Unit Weight of Soil

Unit Weight of Soil mass is the ratio of the total weight of soil to the total volume of soil.

Symbol: γ

Measurement: Specific WeightUnit: kN/m³

Note: Value should be greater than 0.

Formulas to find Unit Weight of Soil

Height of Slice

Height of Slice taken into the consideration.

Symbol: z

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Height of Slice

Other Formulas to find Pore Pressure Ratio

Go Pore Pressure Ratio given Horizontal Width

r u = \frac{u \cdot w}{ΣW}

Other formulas in Slope Stability Analysis using Bishops Method category

Go Normal Stress on Slice

σ normal = \frac{P}{l}

Go Length of Arc of Slice

l = \frac{P}{σ normal}

Go Effective Stress on Slice

σ' = (\frac{P}{l}) - ΣU

Go Length of Arc of Slice given Effective Stress

l = \frac{P}{σ' + ΣU}

How to Evaluate Pore Pressure Ratio given Unit Weight?

Pore Pressure Ratio given Unit Weight evaluator uses Pore Pressure Ratio = (Upward Force in Seepage Analysis/(Unit Weight of Soil*Height of Slice)) to evaluate the Pore Pressure Ratio, The Pore Pressure Ratio given Unit Weight is defined as the pressure of the fluid in the pore space that may influence Bishop's method of slope stability. Pore Pressure Ratio is denoted by r_u symbol.

How to evaluate Pore Pressure Ratio given Unit Weight using this online evaluator? To use this online evaluator for Pore Pressure Ratio given Unit Weight, enter Upward Force in Seepage Analysis (F_u), Unit Weight of Soil (γ) & Height of Slice (z) and hit the calculate button.

FAQs on Pore Pressure Ratio given Unit Weight

What is the formula to find Pore Pressure Ratio given Unit Weight?

The formula of Pore Pressure Ratio given Unit Weight is expressed as Pore Pressure Ratio = (Upward Force in Seepage Analysis/(Unit Weight of Soil*Height of Slice)). Here is an example- 0.979444 = (52890/(18000*3)).

How to calculate Pore Pressure Ratio given Unit Weight?

With Upward Force in Seepage Analysis (F_u), Unit Weight of Soil (γ) & Height of Slice (z) we can find Pore Pressure Ratio given Unit Weight using the formula - Pore Pressure Ratio = (Upward Force in Seepage Analysis/(Unit Weight of Soil*Height of Slice)).

What are the other ways to Calculate Pore Pressure Ratio?

Here are the different ways to Calculate Pore Pressure Ratio-

Pore Pressure Ratio=(Upward Force*Width of Soil Section)/Total Weight of Slice in Soil Mechanics

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Pore Pressure Ratio given Unit Weight Formula

​GoPore Pressure Ratio given Horizontal Width Formula

Pore Pressure Ratio given Unit Weight Example

Pore Pressure Ratio given Unit Weight Solution

Pore Pressure Ratio given Unit Weight Formula Elements

Other Formulas to find Pore Pressure Ratio

Other formulas in Slope Stability Analysis using Bishops Method category

How to Evaluate Pore Pressure Ratio given Unit Weight?

FAQs on Pore Pressure Ratio given Unit Weight

Variable Name

GoPore Pressure Ratio given Horizontal Width Formula