Depth of Footing given Safe Bearing Capacity Solution

STEP 0: Pre-Calculation Summary
Formula Used
Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil
D = (qsa-qnsa)/γ
This formula uses 4 Variables
Variables Used
Depth of Footing - (Measured in Meter) - Depth of Footing is the longer dimension of the footing.
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 Kilonewton per Cubic Meter) - Unit Weight of Soil mass is the ratio of the total weight of soil to the total volume of soil.
STEP 1: Convert Input(s) to Base Unit
Safe Bearing Capacity: 36.34 Kilonewton per Square Meter --> 36340 Pascal (Check conversion here)
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 --> 18 Kilonewton per Cubic Meter No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
D = (qsa-qnsa)/γ --> (36340-15890)/18
Evaluating ... ...
D = 1136.11111111111
STEP 3: Convert Result to Output's Unit
1136.11111111111 Meter --> No Conversion Required
FINAL ANSWER
1136.11111111111 1136.111 Meter <-- Depth of Footing
(Calculation completed in 00.004 seconds)

Credits

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

Depth of Footing given Safe Bearing Capacity Formula

Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil
D = (qsa-qnsa)/γ

What is Footing?

Footings are an important part of foundation construction. They are typically made of concrete with rebar reinforcement that has been poured into an excavated trench. The purpose of footings is to support the foundation and prevent settling. Footings are especially important in areas with troublesome soils.

How to Calculate Depth of Footing given Safe Bearing Capacity?

Depth of Footing given Safe Bearing Capacity calculator uses Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil to calculate the Depth of Footing, The Depth of Footing given Safe Bearing Capacity is defined as the value of depth of footing when we have prior information of safe bearing capacity and other parameters used. Depth of Footing is denoted by D symbol.

How to calculate Depth of Footing given Safe Bearing Capacity using this online calculator? To use this online calculator for Depth of Footing given Safe Bearing Capacity, enter Safe Bearing Capacity (qsa), Net Safe Bearing Capacity in Soil (qnsa) & Unit Weight of Soil (γ) and hit the calculate button. Here is how the Depth of Footing given Safe Bearing Capacity calculation can be explained with given input values -> 1136.111 = (36340-15890)/18000.

FAQ

What is Depth of Footing given Safe Bearing Capacity?
The Depth of Footing given Safe Bearing Capacity is defined as the value of depth of footing when we have prior information of safe bearing capacity and other parameters used and is represented as D = (qsa-qnsa)/γ or Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil. Safe Bearing Capacity is the maximum pressure which the soil can carry safely without risk of shear failure, 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.
How to calculate Depth of Footing given Safe Bearing Capacity?
The Depth of Footing given Safe Bearing Capacity is defined as the value of depth of footing when we have prior information of safe bearing capacity and other parameters used is calculated using Depth of Footing = (Safe Bearing Capacity-Net Safe Bearing Capacity in Soil)/Unit Weight of Soil. To calculate Depth of Footing given Safe Bearing Capacity, you need Safe Bearing Capacity (qsa), Net Safe Bearing Capacity in Soil (qnsa) & Unit Weight of Soil (γ). With our tool, you need to enter the respective value for Safe Bearing Capacity, Net Safe Bearing Capacity in Soil & Unit Weight of Soil and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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