Safe Bearing Capacity Solution

STEP 0: Pre-Calculation Summary
Formula Used
Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil)
qsa = qnsa+(γ*Dfooting)
This formula uses 4 Variables
Variables Used
Safe Bearing Capacity - (Measured in Pascal) - Safe Bearing Capacity is the maximum pressure which the soil can carry safely without risk of shear failure.
Net Safe Bearing Capacity in Soil - (Measured in Pascal) - Net Safe Bearing Capacity in Soil is the net ultimate bearing capacity divided by factor of safety.
Unit Weight of Soil - (Measured in Newton per Cubic Meter) - Unit Weight of Soil mass is the ratio of the total weight of soil to the total volume of soil.
Depth of Footing in Soil - (Measured in Meter) - Depth of Footing in Soil is the longer dimension of the footing in soil mechanics.
STEP 1: Convert Input(s) to Base Unit
Net Safe Bearing Capacity in Soil: 15.89 Kilonewton per Square Meter --> 15890 Pascal (Check conversion here)
Unit Weight of Soil: 18 Kilonewton per Cubic Meter --> 18000 Newton per Cubic Meter (Check conversion here)
Depth of Footing in Soil: 2.54 Meter --> 2.54 Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
qsa = qnsa+(γ*Dfooting) --> 15890+(18000*2.54)
Evaluating ... ...
qsa = 61610
STEP 3: Convert Result to Output's Unit
61610 Pascal -->61.61 Kilonewton per Square Meter (Check conversion here)
FINAL ANSWER
61.61 Kilonewton per Square Meter <-- Safe Bearing Capacity
(Calculation completed in 00.004 seconds)

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Created by Suraj Kumar
Birsa Institute of Technology (BIT), Sindri
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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

Safe Bearing Capacity Formula

Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil)
qsa = qnsa+(γ*Dfooting)

What is Bearing Capacity?

In geotechnical engineering, bearing capacity is the capacity of soil to support the loads applied to the ground. The bearing capacity of soil is the maximum average contact pressure between the foundation and the soil which should not produce shear failure in the soil.

How to Calculate Safe Bearing Capacity?

Safe Bearing Capacity calculator uses Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil) to calculate the Safe Bearing Capacity, The Safe Bearing Capacity is defined as the bearing capacity after applying the factor of safety (FS).This calculates the value of safe bearing capacity when we have prior information of other parameters used. Safe Bearing Capacity is denoted by qsa symbol.

How to calculate Safe Bearing Capacity using this online calculator? To use this online calculator for Safe Bearing Capacity, enter Net Safe Bearing Capacity in Soil (qnsa), Unit Weight of Soil (γ) & Depth of Footing in Soil (Dfooting) and hit the calculate button. Here is how the Safe Bearing Capacity calculation can be explained with given input values -> 0.06161 = 15890+(18000*2.54).

FAQ

What is Safe Bearing Capacity?
The Safe Bearing Capacity is defined as the bearing capacity after applying the factor of safety (FS).This calculates the value of safe bearing capacity when we have prior information of other parameters used and is represented as qsa = qnsa+(γ*Dfooting) or Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil). Net Safe Bearing Capacity in Soil is the net ultimate bearing capacity divided by factor of safety, Unit Weight of Soil mass is the ratio of the total weight of soil to the total volume of soil & Depth of Footing in Soil is the longer dimension of the footing in soil mechanics.
How to calculate Safe Bearing Capacity?
The Safe Bearing Capacity is defined as the bearing capacity after applying the factor of safety (FS).This calculates the value of safe bearing capacity when we have prior information of other parameters used is calculated using Safe Bearing Capacity = Net Safe Bearing Capacity in Soil+(Unit Weight of Soil*Depth of Footing in Soil). To calculate Safe Bearing Capacity, you need Net Safe Bearing Capacity in Soil (qnsa), Unit Weight of Soil (γ) & Depth of Footing in Soil (Dfooting). With our tool, you need to enter the respective value for Net Safe Bearing Capacity in Soil, Unit Weight of Soil & Depth of Footing in Soil 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 Safe Bearing Capacity?
In this formula, Safe Bearing Capacity uses Net Safe Bearing Capacity in Soil, Unit Weight of Soil & Depth of Footing in Soil. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • 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)
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