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Net Safe Bearing Capacity given Ultimate Bearing Capacity Formula

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Net Safe Bearing Capacity is the maximum allowable pressure that can be applied to the soil beneath a structure without risking shear failure or excessive settlement. Check FAQs

q nsa' = \frac{q fc - σ s}{FOS}

q_nsa' - Net Safe Bearing Capacity?q_fc - Ultimate Bearing Capacity of Soil?σ_s - Effective Surcharge in Kilo Pascal?FOS - Factor of Safety in Bearing Capacity of Soil?

Net Safe Bearing Capacity given Ultimate Bearing Capacity Example

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Here is how the Net Safe Bearing Capacity given Ultimate Bearing Capacity equation looks like with Values.

Here is how the Net Safe Bearing Capacity given Ultimate Bearing Capacity equation looks like with Units.

Here is how the Net Safe Bearing Capacity given Ultimate Bearing Capacity equation looks like.

45.4821 = \frac{127.8 - 0.45}{2.8}

45.4821kN/m² = \frac{127.8kPa - 0.45kN/m²}{2.8}

45.4821 = \frac{127.8 - 0.45}{2.8}

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Net Safe Bearing Capacity given Ultimate Bearing Capacity Solution

Follow our step by step solution on how to calculate Net Safe Bearing Capacity given Ultimate Bearing Capacity?

FIRST Step Consider the formula

q nsa' = \frac{q fc - σ s}{FOS}

Next Step Substitute values of Variables

∴

q nsa' = \frac{127.8kPa - 0.45kN/m²}{2.8}

Next Step Convert Units

∴

q nsa' = \frac{127800Pa - 450Pa}{2.8}

Next Step Prepare to Evaluate

∴

q nsa' = \frac{127800 - 450}{2.8}

Next Step Evaluate

∴

q nsa' = 45482.1428571429Pa

Next Step Convert to Output's Unit

∴

q nsa' = 45.4821428571429kN/m²

LAST Step Rounding Answer

∴

q nsa' = 45.4821kN/m²

Net Safe Bearing Capacity given Ultimate Bearing Capacity Formula Elements

Variables

Net Safe Bearing Capacity

Net Safe Bearing Capacity is the maximum allowable pressure that can be applied to the soil beneath a structure without risking shear failure or excessive settlement.

Symbol: q_nsa'

Measurement: PressureUnit: kN/m²

Note: Value should be greater than 0.

Formulas to find Net Safe Bearing Capacity

Ultimate Bearing Capacity of Soil

Ultimate Bearing Capacity of Soil is defined as the minimum gross pressure intensity at the base of the foundation at which the soil fails in shear.

Symbol: q_fc

Measurement: PressureUnit: kPa

Note: Value should be greater than 0.

Formulas to find Ultimate Bearing Capacity of Soil

Effective Surcharge in Kilo Pascal

Effective Surcharge in Kilo Pascal also called as surcharge load refers to the vertical pressure or any load that acts over the ground surface additional to basic earth pressure.

Symbol: σ_s

Measurement: PressureUnit: kN/m²

Note: Value should be greater than 0.

Formulas to find Effective Surcharge in Kilo Pascal

Factor of Safety in Bearing Capacity of Soil

Factor of Safety in Bearing Capacity of Soil expresses how much stronger a soil is than it needs to be for an intended load.

Symbol: FOS

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Factor of Safety in Bearing Capacity of Soil

Other formulas in Bearing Capacity of Soils category

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

q f = ((\frac{C}{\tan (Φ i)}) + (0.5 \cdot γ d \cdot B \cdot \sqrt{K P}) \cdot (K P \cdot \exp (π \cdot \tan (Φ i)) - 1))

Go Effective Surcharge given Depth of Footing

σ s = γ \cdot D

Go Ultimate Bearing Capacity

q f = q net + σ s

Go Net Ultimate Bearing Capacity given Ultimate Bearing Capacity

q net = q f - σ s

How to Evaluate Net Safe Bearing Capacity given Ultimate Bearing Capacity?

Net Safe Bearing Capacity given Ultimate Bearing Capacity evaluator uses Net Safe Bearing Capacity = (Ultimate Bearing Capacity of Soil-Effective Surcharge in Kilo Pascal)/Factor of Safety in Bearing Capacity of Soil to evaluate the Net Safe Bearing Capacity, The Net Safe Bearing Capacity given Ultimate Bearing Capacity formula is defined as the allowable pressure after accounting for the influence of groundwater. It considers the effect of pore water pressure on the stability of the foundation. Net Safe Bearing Capacity is denoted by q_nsa' symbol.

How to evaluate Net Safe Bearing Capacity given Ultimate Bearing Capacity using this online evaluator? To use this online evaluator for Net Safe Bearing Capacity given Ultimate Bearing Capacity, enter Ultimate Bearing Capacity of Soil (q_fc), Effective Surcharge in Kilo Pascal (σ_s) & Factor of Safety in Bearing Capacity of Soil (FOS) and hit the calculate button.

FAQs on Net Safe Bearing Capacity given Ultimate Bearing Capacity

What is the formula to find Net Safe Bearing Capacity given Ultimate Bearing Capacity?

The formula of Net Safe Bearing Capacity given Ultimate Bearing Capacity is expressed as Net Safe Bearing Capacity = (Ultimate Bearing Capacity of Soil-Effective Surcharge in Kilo Pascal)/Factor of Safety in Bearing Capacity of Soil. Here is an example- 0.045482 = (127800-450)/2.8.

How to calculate Net Safe Bearing Capacity given Ultimate Bearing Capacity?

With Ultimate Bearing Capacity of Soil (q_fc), Effective Surcharge in Kilo Pascal (σ_s) & Factor of Safety in Bearing Capacity of Soil (FOS) we can find Net Safe Bearing Capacity given Ultimate Bearing Capacity using the formula - Net Safe Bearing Capacity = (Ultimate Bearing Capacity of Soil-Effective Surcharge in Kilo Pascal)/Factor of Safety in Bearing Capacity of Soil.

Can the Net Safe Bearing Capacity given Ultimate Bearing Capacity be negative?

No, the Net Safe Bearing Capacity given Ultimate Bearing Capacity, measured in Pressure cannot be negative.

Which unit is used to measure Net Safe Bearing Capacity given Ultimate Bearing Capacity?

Net Safe Bearing Capacity given Ultimate Bearing Capacity is usually measured using the Kilonewton per Square Meter[kN/m²] for Pressure. Pascal[kN/m²], Kilopascal[kN/m²], Bar[kN/m²] are the few other units in which Net Safe Bearing Capacity given Ultimate Bearing Capacity can be measured.

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Net Safe Bearing Capacity given Ultimate Bearing Capacity Formula

Net Safe Bearing Capacity given Ultimate Bearing Capacity Example

Net Safe Bearing Capacity given Ultimate Bearing Capacity Solution

Net Safe Bearing Capacity given Ultimate Bearing Capacity Formula Elements

Other formulas in Bearing Capacity of Soils category

How to Evaluate Net Safe Bearing Capacity given Ultimate Bearing Capacity?

FAQs on Net Safe Bearing Capacity given Ultimate Bearing Capacity

Variable Name