FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Formula

GoNet Bearing Capacity for Undrained Loading of Cohesive Soils Formula

Fx Copy

LaTeX Copy

Net Bearing Capacity is the maximum net pressure intensity to which the soil at the base of the foundation can be subjected without risk of shear failure. Check FAQs

q u = (α f \cdot C u \cdot N c) + (σ vo \cdot N q) + (β f \cdot γ \cdot B \cdot N γ)

q_u - Net Bearing Capacity?α_f - Alpha Footing Factor?C_u - Undrained Shear Strength of Soil?N_c - Bearing Capacity Factor?σ_vo - Effective Vertical Shear Stress in Soil?N_q - Bearing Capacity Factor Nq?β_f - Beta Footing Factor?γ - Unit Weight of Soil?B - Width of Footing?N_γ - Value of Nγ?

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Example

With values

With units

Only example

Here is how the Net Bearing Capacity of Long Footing in Foundation Stability Analysis equation looks like with Values.

Here is how the Net Bearing Capacity of Long Footing in Foundation Stability Analysis equation looks like with Units.

Here is how the Net Bearing Capacity of Long Footing in Foundation Stability Analysis equation looks like.

113.512 = (1.3 \cdot 17 \cdot 3.1) + (0.001 \cdot 1.98) + (0.5 \cdot 18 \cdot 2 \cdot 2.5)

113.512kPa = (1.3 \cdot 17kPa \cdot 3.1) + (0.001kPa \cdot 1.98) + (0.5 \cdot 18kN/m³ \cdot 2m \cdot 2.5)

113.512 = (1.3 \cdot 17 \cdot 3.1) + (0.001 \cdot 1.98) + (0.5 \cdot 18 \cdot 2 \cdot 2.5)

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Civil » Category

Geotechnical Engineering » fx Net Bearing Capacity of Long Footing in Foundation Stability Analysis

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Solution

Follow our step by step solution on how to calculate Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

FIRST Step Consider the formula

q u = (α f \cdot C u \cdot N c) + (σ vo \cdot N q) + (β f \cdot γ \cdot B \cdot N γ)

Next Step Substitute values of Variables

∴

q u = (1.3 \cdot 17kPa \cdot 3.1) + (0.001kPa \cdot 1.98) + (0.5 \cdot 18kN/m³ \cdot 2m \cdot 2.5)

Next Step Convert Units

∴

q u = (1.3 \cdot 17000Pa \cdot 3.1) + (1Pa \cdot 1.98) + (0.5 \cdot 18000N/m³ \cdot 2m \cdot 2.5)

Next Step Prepare to Evaluate

∴

q u = (1.3 \cdot 17000 \cdot 3.1) + (1 \cdot 1.98) + (0.5 \cdot 18000 \cdot 2 \cdot 2.5)

Next Step Evaluate

∴

q u = 113511.98Pa

Next Step Convert to Output's Unit

∴

q u = 113.51198kPa

LAST Step Rounding Answer

∴

q u = 113.512kPa

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Formula Elements

Variables

Net Bearing Capacity

Net Bearing Capacity is the maximum net pressure intensity to which the soil at the base of the foundation can be subjected without risk of shear failure.

Symbol: q_u

Measurement: PressureUnit: kPa

Note: Value can be positive or negative.

Formulas to find Net Bearing Capacity

Alpha Footing Factor

Alpha Footing Factor is a dimensionless coefficient that is used in bearing capacity equations. It modifies the ultimate bearing capacity of the soil.

Symbol: α_f

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Alpha Footing Factor

Undrained Shear Strength of Soil

Undrained Shear Strength of Soil is the shear strength of a soil when it is subjected to rapid loading and does not have enough time to drain.

Symbol: C_u

Measurement: PressureUnit: kPa

Note: Value should be greater than 0.

Formulas to find Undrained Shear Strength of Soil

Bearing Capacity Factor

Bearing Capacity Factor is empirically derived factor used in a bearing capacity equation that usually correlates with the angle of internal friction of the soil.

Symbol: N_c

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Bearing Capacity Factor

Effective Vertical Shear Stress in Soil

Effective Vertical Shear Stress in soil is the total vertical stress acting at a point below the ground surface is due to the weight of everything lying above soil, water, and surface loading.

Symbol: σ_vo

Measurement: PressureUnit: kPa

Note: Value should be greater than 0.

Formulas to find Effective Vertical Shear Stress in Soil

Bearing Capacity Factor Nq

Bearing Capacity Factor Nq used in a bearing capacity equation that correlates with the angle of internal friction of soil.

Symbol: N_q

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Bearing Capacity Factor Nq

Beta Footing Factor

Beta Footing Factor in slope stability often relate to bearing capacity, safety factors, and load distribution. It is 0.5 for strip footings, 0.4 for square footings, and 0.6 for circular footings.

Symbol: β_f

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Beta Footing Factor

Unit Weight of Soil

Unit Weight of Soil 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

Width of Footing

Width of Footing is the shorter dimension of the footing.

Symbol: B

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Width of Footing

Value of Nγ

Value of Nγ is bearing capacity factor.

Symbol: N_γ

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Value of Nγ

Other Formulas to find Net Bearing Capacity

Go Net Bearing Capacity for Undrained Loading of Cohesive Soils

q u = α f \cdot N q \cdot C u

Other formulas in Foundation Stability Analysis category

Go Maximum Bearing Pressure for Eccentric Loading Conventional Case

q m = (\frac{C g}{b \cdot L}) \cdot (1 + (\frac{6 \cdot e load}{b}))

Go Minimum Bearing Pressure for Eccentric Loading Conventional Case

q min = (\frac{P}{b \cdot L}) \cdot (1 - (\frac{6 \cdot e load}{b}))

How to Evaluate Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

Net Bearing Capacity of Long Footing in Foundation Stability Analysis evaluator uses Net Bearing Capacity = (Alpha Footing Factor*Undrained Shear Strength of Soil*Bearing Capacity Factor)+(Effective Vertical Shear Stress in Soil*Bearing Capacity Factor Nq)+(Beta Footing Factor*Unit Weight of Soil*Width of Footing*Value of Nγ) to evaluate the Net Bearing Capacity, The Net Bearing Capacity of Long Footing in Foundation Stability Analysis formula is defined as the net bearing capacity per unit area of the footing. Net Bearing Capacity is denoted by q_u symbol.

How to evaluate Net Bearing Capacity of Long Footing in Foundation Stability Analysis using this online evaluator? To use this online evaluator for Net Bearing Capacity of Long Footing in Foundation Stability Analysis, enter Alpha Footing Factor (α_f), Undrained Shear Strength of Soil (C_u), Bearing Capacity Factor (N_c), Effective Vertical Shear Stress in Soil (σ_vo), Bearing Capacity Factor Nq (N_q), Beta Footing Factor (β_f), Unit Weight of Soil (γ), Width of Footing (B) & Value of Nγ (N_γ) and hit the calculate button.

FAQs on Net Bearing Capacity of Long Footing in Foundation Stability Analysis

What is the formula to find Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

The formula of Net Bearing Capacity of Long Footing in Foundation Stability Analysis is expressed as Net Bearing Capacity = (Alpha Footing Factor*Undrained Shear Strength of Soil*Bearing Capacity Factor)+(Effective Vertical Shear Stress in Soil*Bearing Capacity Factor Nq)+(Beta Footing Factor*Unit Weight of Soil*Width of Footing*Value of Nγ). Here is an example- 0.113512 = (1.3*17000*3.1)+(1*1.98)+(0.5*18000*2*2.5).

How to calculate Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

With Alpha Footing Factor (α_f), Undrained Shear Strength of Soil (C_u), Bearing Capacity Factor (N_c), Effective Vertical Shear Stress in Soil (σ_vo), Bearing Capacity Factor Nq (N_q), Beta Footing Factor (β_f), Unit Weight of Soil (γ), Width of Footing (B) & Value of Nγ (N_γ) we can find Net Bearing Capacity of Long Footing in Foundation Stability Analysis using the formula - Net Bearing Capacity = (Alpha Footing Factor*Undrained Shear Strength of Soil*Bearing Capacity Factor)+(Effective Vertical Shear Stress in Soil*Bearing Capacity Factor Nq)+(Beta Footing Factor*Unit Weight of Soil*Width of Footing*Value of Nγ).

What are the other ways to Calculate Net Bearing Capacity?

Here are the different ways to Calculate Net Bearing Capacity-

Net Bearing Capacity=Alpha Footing Factor*Bearing Capacity Factor Nq*Undrained Shear Strength of Soil

Can the Net Bearing Capacity of Long Footing in Foundation Stability Analysis be negative?

Yes, the Net Bearing Capacity of Long Footing in Foundation Stability Analysis, measured in Pressure can be negative.

Which unit is used to measure Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

Net Bearing Capacity of Long Footing in Foundation Stability Analysis is usually measured using the Kilopascal[kPa] for Pressure. Pascal[kPa], Bar[kPa], Pound Per Square Inch[kPa] are the few other units in which Net Bearing Capacity of Long Footing in Foundation Stability Analysis can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Formula

​GoNet Bearing Capacity for Undrained Loading of Cohesive Soils Formula

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Example

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Solution

Net Bearing Capacity of Long Footing in Foundation Stability Analysis Formula Elements

Other Formulas to find Net Bearing Capacity

Other formulas in Foundation Stability Analysis category

How to Evaluate Net Bearing Capacity of Long Footing in Foundation Stability Analysis?

FAQs on Net Bearing Capacity of Long Footing in Foundation Stability Analysis

Variable Name

GoNet Bearing Capacity for Undrained Loading of Cohesive Soils Formula