Ultimate Resistance for Cohesive and Cohesion less Soils Calculator

✖Length of Soil Section is the measurement or extent of something from end to end.ⓘ Length of Soil Section [L]			+10% -10%
✖Skin Friction Stress in Soil Mechanics is the average ultimate skin- friction stress in tension developed on the failure plane.ⓘ Skin Friction Stress in Soil Mechanics [f _ut]			+10% -10%
✖Weight of Soil is the weight of soil contained within the failure plane.ⓘ Weight of Soil [W_soil]			+10% -10%
✖Shaft Weight in Soil Mechanics is the weight of the pile shaft.ⓘ Shaft Weight in Soil Mechanics [W_s]			+10% -10%

✖Ultimate Resistance is the amount of load applied to a component beyond which the component will fail.ⓘ Ultimate Resistance for Cohesive and Cohesion less Soils [Q_ul]

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Ultimate Resistance for Cohesive and Cohesion less Soils

Formula

`"Q"_{"ul"} = pi*"L"*"f "_{"ut"}+"W"_{"soil"}+"W"_{"s"}`

Example

`"999.8996kN"=pi*"0.52m"*"0.012kN/m²"+"4.90kN"+"994.98kN"`

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Ultimate Resistance for Cohesive and Cohesion less Soils Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics
Q_ul = pi*L*f _ut+W_soil+W_s
This formula uses 1 Constants, 5 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Ultimate Resistance - (Measured in Newton) - Ultimate Resistance is the amount of load applied to a component beyond which the component will fail.
Length of Soil Section - (Measured in Meter) - Length of Soil Section is the measurement or extent of something from end to end.
Skin Friction Stress in Soil Mechanics - (Measured in Pascal) - Skin Friction Stress in Soil Mechanics is the average ultimate skin- friction stress in tension developed on the failure plane.
Weight of Soil - (Measured in Newton) - Weight of Soil is the weight of soil contained within the failure plane.
Shaft Weight in Soil Mechanics - (Measured in Newton) - Shaft Weight in Soil Mechanics is the weight of the pile shaft.

STEP 1: Convert Input(s) to Base Unit

Length of Soil Section: 0.52 Meter --> 0.52 Meter No Conversion Required
Skin Friction Stress in Soil Mechanics: 0.012 Kilonewton per Square Meter --> 12 Pascal (Check conversion here)
Weight of Soil: 4.9 Kilonewton --> 4900 Newton (Check conversion here)
Shaft Weight in Soil Mechanics: 994.98 Kilonewton --> 994980 Newton (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

Q_ul = pi*L*f _ut+W_soil+W_s --> pi*0.52*12+4900+994980

Evaluating ... ...

Q_ul = 999899.603538158

STEP 3: Convert Result to Output's Unit

999899.603538158 Newton -->999.899603538158 Kilonewton (Check conversion here)

FINAL ANSWER

999.899603538158 ≈ 999.8996 Kilonewton <-- Ultimate Resistance

(Calculation completed in 00.004 seconds)

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Home » Engineering » Civil » Geotechnical Engineering » Shaft Settlement and Resistance » Ultimate Resistance for Cohesive and Cohesion less Soils

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Don Bosco College of Engineering (DBCE), Goa

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Osmania University (OU), Hyderabad

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< 7 Shaft Settlement and Resistance Calculators

Ultimate Resistance for Bearing Capacity Solution

Go Ultimate Resistance = (pi/4)*((Bell Diameter^2)-(Shaft Diameter in Soil Mechanics^2))*(Bearing Capacity Factor*Shear Strength Reduction Factor in Soil Mechanics*Undrained Shear Strength)+Shaft Weight in Soil Mechanics

Average Ultimate Skin-Friction Stress in Tension on Failure Plane

Go Skin Friction Stress in Soil Mechanics = ((Ultimate Resistance-Weight of Soil-Shaft Weight in Soil Mechanics)/(pi*Length of Soil Section))

Weight of Soil Contained within Failure Plane

Go Weight of Soil = Ultimate Resistance-(pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics)-Shaft Weight in Soil Mechanics

Ultimate Resistance for Cohesive and Cohesion less Soils

Go Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics

Weight of Shaft given Ultimate Resistance

Go Shaft Weight = (Ultimate Resistance-Weight of Soil)/(pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics)

Average Standard Penetration Resistance using Shaft Resistance Stress

Go Average Standard Penetration = Shaft Resistance Stress in Soil Mechanics*50

Shaft Resistance Stress by Empirical Procedure

Go Shaft Resistance Stress in Soil Mechanics = Average Standard Penetration/50

Ultimate Resistance for Cohesive and Cohesion less Soils Formula

Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics
Q_ul = pi*L*f _ut+W_soil+W_s

What is Cohesionless and Cohesive Soils?

Cohesionless soil is soil that contains elements that do not stick together.
Cohesive soil means clay (fine grained soil), or soil with a high clay content, which has cohesive strength. Cohesive soil does not crumble, can be excavated with vertical sideslopes, and is plastic when moist. Cohesive soil is hard to break up when dry, and exhibits significant cohesion when submerged.

How to Calculate Ultimate Resistance for Cohesive and Cohesion less Soils?

Ultimate Resistance for Cohesive and Cohesion less Soils calculator uses Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics to calculate the Ultimate Resistance, The Ultimate Resistance for Cohesive and Cohesion less Soils is defined as the amount of load applied to a component beyond which the component will fail. Ultimate Resistance is denoted by Q_ul symbol.

How to calculate Ultimate Resistance for Cohesive and Cohesion less Soils using this online calculator? To use this online calculator for Ultimate Resistance for Cohesive and Cohesion less Soils, enter Length of Soil Section (L), Skin Friction Stress in Soil Mechanics (f _ut), Weight of Soil (W_soil) & Shaft Weight in Soil Mechanics (W_s) and hit the calculate button. Here is how the Ultimate Resistance for Cohesive and Cohesion less Soils calculation can be explained with given input values -> 0.9999 = pi*0.52*12+4900+994980.

FAQ

What is Ultimate Resistance for Cohesive and Cohesion less Soils?

The Ultimate Resistance for Cohesive and Cohesion less Soils is defined as the amount of load applied to a component beyond which the component will fail and is represented as Q_ul = pi*L*f _ut+W_soil+W_s or Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics. Length of Soil Section is the measurement or extent of something from end to end, Skin Friction Stress in Soil Mechanics is the average ultimate skin- friction stress in tension developed on the failure plane, Weight of Soil is the weight of soil contained within the failure plane & Shaft Weight in Soil Mechanics is the weight of the pile shaft.

How to calculate Ultimate Resistance for Cohesive and Cohesion less Soils?

The Ultimate Resistance for Cohesive and Cohesion less Soils is defined as the amount of load applied to a component beyond which the component will fail is calculated using Ultimate Resistance = pi*Length of Soil Section*Skin Friction Stress in Soil Mechanics+Weight of Soil+Shaft Weight in Soil Mechanics. To calculate Ultimate Resistance for Cohesive and Cohesion less Soils, you need Length of Soil Section (L), Skin Friction Stress in Soil Mechanics (f _ut), Weight of Soil (W_soil) & Shaft Weight in Soil Mechanics (W_s). With our tool, you need to enter the respective value for Length of Soil Section, Skin Friction Stress in Soil Mechanics, Weight of Soil & Shaft Weight in Soil Mechanics 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 Resistance?

In this formula, Ultimate Resistance uses Length of Soil Section, Skin Friction Stress in Soil Mechanics, Weight of Soil & Shaft Weight in Soil Mechanics. We can use 1 other way(s) to calculate the same, which is/are as follows -

Ultimate Resistance = (pi/4)*((Bell Diameter^2)-(Shaft Diameter in Soil Mechanics^2))*(Bearing Capacity Factor*Shear Strength Reduction Factor in Soil Mechanics*Undrained Shear Strength)+Shaft Weight in Soil Mechanics

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