Layer Coefficient for Subbase Course using Structural Number Calculator

✖Structural Number for Subbase Course can be described as the ability of the subbase course to withstand the axle loads.ⓘ Structural Number for Subbase Course [SN₃]			+10% -10%
✖Actual Thickness Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments.ⓘ Actual Thickness Base Course Payment [T_a]			+10% -10%
✖Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.ⓘ Drainage coefficient [M_n]			+10% -10%

✖Layer Coefficient can be represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer.ⓘ Layer Coefficient for Subbase Course using Structural Number [a_n]

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Formula

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Layer Coefficient for Subbase Course using Structural Number

Formula

`"a"_{"n"} = "SN"_{"3"}/("T"_{"a"}*"M"_{"n"})`

Example

`"0.503333"= "151mm"/("1200mm"*"0.25")`

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Layer Coefficient for Subbase Course using Structural Number Solution

STEP 0: Pre-Calculation Summary

Formula Used

Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient)
a_n = SN₃/(T_a*M_n)
This formula uses 4 Variables

Variables Used

Layer Coefficient - Layer Coefficient can be represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer.
Structural Number for Subbase Course - (Measured in Millimeter) - Structural Number for Subbase Course can be described as the ability of the subbase course to withstand the axle loads.
Actual Thickness Base Course Payment - (Measured in Millimeter) - Actual Thickness Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments.
Drainage coefficient - Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.

STEP 1: Convert Input(s) to Base Unit

Structural Number for Subbase Course: 151 Millimeter --> 151 Millimeter No Conversion Required
Actual Thickness Base Course Payment: 1200 Millimeter --> 1200 Millimeter No Conversion Required
Drainage coefficient: 0.25 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

a_n = SN₃/(T_a*M_n) --> 151/(1200*0.25)

Evaluating ... ...

a_n = 0.503333333333333

STEP 3: Convert Result to Output's Unit

0.503333333333333 --> No Conversion Required

FINAL ANSWER

0.503333333333333 ≈ 0.503333 <-- Layer Coefficient

(Calculation completed in 00.020 seconds)

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Created by M Naveen

National Institute of Technology (NIT), Warangal

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Bhilai Institute of Technology (BIT), Raipur

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< 12 Structural Numbers for Flexible Pavements Calculators

Structural Number to Withstand Anticipated Axle Loads

Go Structural Number = Structural Number for Surface Course+Structural Number for Base Course+Structural Number for Subbase Course

Drainage Coefficient of Subbase using Structural Number

Go Drainage coefficient = Structural Number for Subbase Course/ (Layer Coefficient*Actual Thickness Base Course Payment)

Layer Coefficient for Subbase Course using Structural Number

Go Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient)

Actual Thickness of Subbase Course given Structural Number

Go Actual Thickness Base Course Payment = Structural Number for Subbase Course/(Layer Coefficient*Drainage coefficient)

Structural Number for Subbase Course

Go Structural Number for Subbase Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)

Drainage Coefficient for Base Course given Structural Number

Go Drainage coefficient = Structural Number for Base Course/ (Layer Coefficient*Actual Thickness Base Course Payment)

Layer Coefficient of Base Course given Structural Number

Go Layer Coefficient = Structural Number for Base Course/(Actual Thickness Base Course Payment*Drainage coefficient)

Actual Thickness of Base Course given Structural Number

Go Actual Thickness Base Course Payment = Structural Number for Base Course/(Layer Coefficient*Drainage coefficient)

Structural Number for Base Course

Go Structural Number for Base Course = (Layer Coefficient*Actual Thickness Base Course Payment*Drainage coefficient)

Layer Coefficient of Surface Course using Structural Number

Go Layer Coefficient = (Structural Number for Surface Course/Actual Thickness)

Actual Thickness of Surface Course given Structural Number

Go Actual Thickness = (Structural Number for Surface Course/Layer Coefficient)

Structural Number for Surface Course

Go Structural Number for Surface Course = (Layer Coefficient*Actual Thickness)

Layer Coefficient for Subbase Course using Structural Number Formula

Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient)
a_n = SN₃/(T_a*M_n)

What is structural number (SN)?

Structural Number (SN), which is an abstract value that expresses the structural strength of the overall pavement.

How to Calculate Layer Coefficient for Subbase Course using Structural Number?

Layer Coefficient for Subbase Course using Structural Number calculator uses Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient) to calculate the Layer Coefficient, Layer Coefficient for Subbase Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer. Layer Coefficient is denoted by a_n symbol.

How to calculate Layer Coefficient for Subbase Course using Structural Number using this online calculator? To use this online calculator for Layer Coefficient for Subbase Course using Structural Number, enter Structural Number for Subbase Course (SN₃), Actual Thickness Base Course Payment (T_a) & Drainage coefficient (M_n) and hit the calculate button. Here is how the Layer Coefficient for Subbase Course using Structural Number calculation can be explained with given input values -> 0.503333 = 0.151/(1.2*0.25).

FAQ

What is Layer Coefficient for Subbase Course using Structural Number?

Layer Coefficient for Subbase Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer and is represented as a_n = SN₃/(T_a*M_n) or Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient). Structural Number for Subbase Course can be described as the ability of the subbase course to withstand the axle loads, Actual Thickness Base Course Payment can be described as the design thickness of various layers of the courses for flexible payments & Drainage coefficient is a value assigned to a pavement layer that represents its relative loss of strength due to drainage characteristics and exposure to moisture saturation.

How to calculate Layer Coefficient for Subbase Course using Structural Number?

Layer Coefficient for Subbase Course using Structural Number represents the strength of the material, this is the primary variable that factors in the type of material you plan to use for each layer is calculated using Layer Coefficient = Structural Number for Subbase Course/(Actual Thickness Base Course Payment*Drainage coefficient). To calculate Layer Coefficient for Subbase Course using Structural Number, you need Structural Number for Subbase Course (SN₃), Actual Thickness Base Course Payment (T_a) & Drainage coefficient (M_n). With our tool, you need to enter the respective value for Structural Number for Subbase Course, Actual Thickness Base Course Payment & Drainage coefficient 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 Layer Coefficient?

In this formula, Layer Coefficient uses Structural Number for Subbase Course, Actual Thickness Base Course Payment & Drainage coefficient. We can use 2 other way(s) to calculate the same, which is/are as follows -

Layer Coefficient = (Structural Number for Surface Course/Actual Thickness)
Layer Coefficient = Structural Number for Base Course/(Actual Thickness Base Course Payment*Drainage coefficient)

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