Ultimate Bearing Capacity Calculator

✖Net Ultimate Bearing Capacity in Soil is the minimum net pressure intensity causing shear failure.ⓘ Net Ultimate Bearing Capacity in Soil [q_net]			+10% -10%
✖Effective Surcharge in KiloPascal also called as surcharge load refers to the vertical pressure or any load that acts over the ground surface additional to basic earth pressure.ⓘ Effective Surcharge in KiloPascal [σ_s]			+10% -10%

✖The Ultimate Bearing Capacity is defined as the minimum gross pressure intensity at the base of the foundation at which the soil fails in shear.ⓘ Ultimate Bearing Capacity [q_f]

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Formula

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Ultimate Bearing Capacity

Formula

`"q"_{"f"} = "q"_{"net"}+"σ"_{"s"}`

Example

`"84.2kPa"="38.3kN/m²"+"45.9kN/m²"`

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Ultimate Bearing Capacity Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal
q_f = q_net+σ_s
This formula uses 3 Variables

Variables Used

Ultimate Bearing Capacity - (Measured in Pascal) - The Ultimate Bearing Capacity is defined as the minimum gross pressure intensity at the base of the foundation at which the soil fails in shear.
Net Ultimate Bearing Capacity in Soil - (Measured in Pascal) - Net Ultimate Bearing Capacity in Soil is the minimum net pressure intensity causing shear failure.
Effective Surcharge in KiloPascal - (Measured in Pascal) - Effective Surcharge in KiloPascal also called as surcharge load refers to the vertical pressure or any load that acts over the ground surface additional to basic earth pressure.

STEP 1: Convert Input(s) to Base Unit

Net Ultimate Bearing Capacity in Soil: 38.3 Kilonewton per Square Meter --> 38300 Pascal (Check conversion here)
Effective Surcharge in KiloPascal: 45.9 Kilonewton per Square Meter --> 45900 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

q_f = q_net+σ_s --> 38300+45900

Evaluating ... ...

q_f = 84200

STEP 3: Convert Result to Output's Unit

84200 Pascal -->84.2 Kilopascal (Check conversion here)

FINAL ANSWER

84.2 Kilopascal <-- Ultimate Bearing Capacity

(Calculation completed in 00.004 seconds)

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Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

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< 16 Bearing Capacity of Soils Calculators

Ultimate Bearing Capacity of Soil under Long Footing at Surface of Soil

Go Ultimate Bearing Capacity = ((Prandtls Cohesion/tan(Angle of Internal Friction))+(0.5*Dry Unit Weight of Soil*Width of Footing*sqrt(Coefficient of Passive Pressure))*(Coefficient of Passive Pressure*exp(pi*tan(Angle of Internal Friction))-1))

Safe Bearing Capacity given Net Ultimate Bearing Capacity

Go Safe Bearing Capacity = (Net Ultimate Bearing Capacity in Soil/Factor of Safety in Bearing Capacity of Soil)+(Unit Weight of Soil*Depth of Footing in Soil)

Bearing Capacity Factor Dependent on Unit Weight by Vesic's Analysis

Go Bearing Capacity Factor dependent on Unit Weight = 2*(Bearing Capacity Factor dependent on Surcharge+1)*tan((Angle of Internal Friction of Soil*pi)/180)

Net Safe Bearing Capacity given Ultimate Bearing Capacity

Go Net Safe Bearing Capacity in Soil = (Ultimate Bearing Capacity in Soil-Effective Surcharge in KiloPascal)/Factor of Safety in Bearing Capacity of Soil

Ultimate Bearing Capacity given Factor of Safety

Go Ultimate Bearing Capacity = (Net Safe Bearing Capacity in Soil*Factor of Safety in Bearing Capacity of Soil)+Effective Surcharge in KiloPascal

Angle of Internal Friction given Bearing Capacity by by Vesic's Analysis

Go Angle of Internal Friction = atan(Bearing Capacity Factor dependent on Unit Weight/(2*(Bearing Capacity Factor dependent on Surcharge+1)))

Ultimate Bearing Capacity given Depth of Footing

Go Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil)

Safe Bearing Capacity

Go Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil)

Depth of Footing given Safe Bearing Capacity

Go Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil

Net Ultimate Bearing Capacity given Net Safe Bearing Capacity

Go Net Ultimate Bearing Capacity in Soil = Net Safe Bearing Capacity in Soil*Factor of Safety in Bearing Capacity of Soil

Net Safe Bearing Capacity

Go Net Safe Bearing Capacity in Soil = Net Ultimate Bearing Capacity in Soil/Factor of Safety in Bearing Capacity of Soil

Net Ultimate Bearing Capacity given Ultimate Bearing Capacity

Go Net Ultimate Bearing Capacity in Soil = Ultimate Bearing Capacity in Soil-Effective Surcharge in KiloPascal

Ultimate Bearing Capacity

Go Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal

Effective Surcharge given Depth of Footing

Go Effective Surcharge in KiloPascal = Unit Weight of Soil*Depth of Footing

Effective Surcharge given Net Pressure Intensity

Go Effective Surcharge in KiloPascal = Gross Pressure-Net Pressure

Net Pressure Intensity

Go Net Pressure = Gross Pressure-Effective Surcharge in KiloPascal

Ultimate Bearing Capacity Formula

Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal
q_f = q_net+σ_s

What is Ultimate Bearing Capacity?

In geotechnical engineering, bearing capacity is the capacity of soil to support the loads applied to the ground.Ultimate bearing capacity is the theoretical maximum pressure which can be supported without failure; allowable bearing capacity is the ultimate bearing capacity divided by a factor of safety.

How to Calculate Ultimate Bearing Capacity?

Ultimate Bearing Capacity calculator uses Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal to calculate the Ultimate Bearing Capacity, The Ultimate Bearing Capacity is defined as the maximum load that foundation soils can withstand, and its reasonable determination is one of the pivotal parts in foundation designs. Ultimate Bearing Capacity is denoted by q_f symbol.

How to calculate Ultimate Bearing Capacity using this online calculator? To use this online calculator for Ultimate Bearing Capacity, enter Net Ultimate Bearing Capacity in Soil (q_net) & Effective Surcharge in KiloPascal (σ_s) and hit the calculate button. Here is how the Ultimate Bearing Capacity calculation can be explained with given input values -> 0.0842 = 38300+45900.

FAQ

What is Ultimate Bearing Capacity?

The Ultimate Bearing Capacity is defined as the maximum load that foundation soils can withstand, and its reasonable determination is one of the pivotal parts in foundation designs and is represented as q_f = q_net+σ_s or Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal. Net Ultimate Bearing Capacity in Soil is the minimum net pressure intensity causing shear failure & Effective Surcharge in KiloPascal also called as surcharge load refers to the vertical pressure or any load that acts over the ground surface additional to basic earth pressure.

How to calculate Ultimate Bearing Capacity?

The Ultimate Bearing Capacity is defined as the maximum load that foundation soils can withstand, and its reasonable determination is one of the pivotal parts in foundation designs is calculated using Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+Effective Surcharge in KiloPascal. To calculate Ultimate Bearing Capacity, you need Net Ultimate Bearing Capacity in Soil (q_net) & Effective Surcharge in KiloPascal (σ_s). With our tool, you need to enter the respective value for Net Ultimate Bearing Capacity in Soil & Effective Surcharge in KiloPascal and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Ultimate Bearing Capacity?

In this formula, Ultimate Bearing Capacity uses Net Ultimate Bearing Capacity in Soil & Effective Surcharge in KiloPascal. We can use 3 other way(s) to calculate the same, which is/are as follows -

Ultimate Bearing Capacity = ((Prandtls Cohesion/tan(Angle of Internal Friction))+(0.5*Dry Unit Weight of Soil*Width of Footing*sqrt(Coefficient of Passive Pressure))*(Coefficient of Passive Pressure*exp(pi*tan(Angle of Internal Friction))-1))
Ultimate Bearing Capacity = Net Ultimate Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil)
Ultimate Bearing Capacity = (Net Safe Bearing Capacity in Soil*Factor of Safety in Bearing Capacity of Soil)+Effective Surcharge in KiloPascal

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