Distance from Blast Hole to Nearest Perpendicular Free Face or Burden Calculator

✖Diameter of Borehole is any straight-line segment that passes through the center of the borehole.ⓘ Diameter of Borehole [D_h]			+10% -10%
✖Length of Borehole is the longer dimension of the borehole.ⓘ Length of Borehole [L]			+10% -10%

✖Burden is the distance from the blast hole to the nearest perpendicular free face.ⓘ Distance from Blast Hole to Nearest Perpendicular Free Face or Burden [B]

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Formula

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Distance from Blast Hole to Nearest Perpendicular Free Face or Burden

Formula

`"B" = sqrt("D"_{"h"}*"L")`

Example

`"14.28356ft"=sqrt("10.1ft"*"20.2ft")`

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Distance from Blast Hole to Nearest Perpendicular Free Face or Burden Solution

STEP 0: Pre-Calculation Summary

Formula Used

Burden = sqrt(Diameter of Borehole*Length of Borehole)
B = sqrt(D_h*L)
This formula uses 1 Functions, 3 Variables

Functions Used

sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)

Variables Used

Burden - (Measured in Meter) - Burden is the distance from the blast hole to the nearest perpendicular free face.
Diameter of Borehole - (Measured in Meter) - Diameter of Borehole is any straight-line segment that passes through the center of the borehole.
Length of Borehole - (Measured in Meter) - Length of Borehole is the longer dimension of the borehole.

STEP 1: Convert Input(s) to Base Unit

Diameter of Borehole: 10.1 Foot --> 3.07848000001231 Meter (Check conversion here)
Length of Borehole: 20.2 Foot --> 6.15696000002463 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

B = sqrt(D_h*L) --> sqrt(3.07848000001231*6.15696000002463)

Evaluating ... ...

B = 4.35362816751174

STEP 3: Convert Result to Output's Unit

4.35362816751174 Meter -->14.2835569799683 Foot (Check conversion here)

FINAL ANSWER

14.2835569799683 ≈ 14.28356 Foot <-- Burden

(Calculation completed in 00.004 seconds)

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Credits

Created by Suraj Kumar

Birsa Institute of Technology (BIT), Sindri

Suraj Kumar has created this Calculator and 2200+ more calculators!

Verified by Ishita Goyal

Meerut Institute of Engineering and Technology (MIET), Meerut

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< 22 Vibration Control in Blasting Calculators

Diameter of Drill Bit using Burden Suggested in Langefors' Formula

Go Diameter of Drill Bit = (Burden in Langefors' Formula*33)*sqrt((Rock Constant*Degree of Fraction*Ratio of Spacing to Burden)/(Degree of Packing*Weight Strength of Explosive))

Weight Strength of Explosive using Burden Suggested in Langefors' Formula

Go Weight Strength of Explosive = (33*Burden in Langefors' Formula/Diameter of Drill Bit)^2*((Ratio of Spacing to Burden*Rock Constant*Degree of Fraction)/Degree of Packing)

Maximum Weight of Explosives given Scaled Distance for Vibration Control

Go Maximum Weight of Explosives per Delay = ((Distance from Explosion to Exposure)^(-Constant of Scaled Distance β)*(Constant of Scaled Distance/Scaled Distance))^(-2/Constant of Scaled Distance β)

Distance to Exposure given Scaled Distance for Vibration Control

Go Distance from Explosion to Exposure = sqrt(Maximum Weight of Explosives per Delay)*(Scaled Distance/Constant of Scaled Distance)^(-1/Constant of Scaled Distance β)

Scaled Distance for Vibration Control

Go Scaled Distance = Constant of Scaled Distance*(Distance from Explosion to Exposure/sqrt(Maximum Weight of Explosives per Delay))^(-Constant of Scaled Distance β)

Distance of Particle Two from Site of Explosion given Velocity

Go Distance of Particle 2 from Explosion = Distance of Particle 1 from Explosion*(Velocity of Particle with Mass m1/Velocity of Particle with Mass m2)^(2/3)

Velocity of Particle One at Distance from Explosion

Go Velocity of Particle with Mass m1 = Velocity of Particle with Mass m2*(Distance of Particle 2 from Explosion/Distance of Particle 1 from Explosion)^(1.5)

Velocity of Particle Two at distance from Explosion

Go Velocity of Particle with Mass m2 = Velocity of Particle with Mass m1*(Distance of Particle 1 from Explosion/Distance of Particle 2 from Explosion)^(1.5)

Distance of Particle One from Site of Explosion

Go Distance of Particle 1 from Explosion = Distance of Particle 2 from Explosion*(Velocity of Particle with Mass m2/Velocity of Particle with Mass m1)^(2/3)

Diameter of Explosive using Burden Suggested in Konya Formula

Go Diameter of Explosive = (Burden/3.15)*(Specific Gravity of Rock/Specific Gravity of Explosive)^(1/3)

Specific Gravity of Explosive using Burden Suggested in Konya Formula

Go Specific Gravity of Explosive = Specific Gravity of Rock*(Burden/(3.15*Diameter of Explosive))^3

Specific Gravity of Rock using Burden Suggested in Konya Formula

Go Specific Gravity of Rock = Specific Gravity of Explosive*((3.15*Diameter of Explosive)/Burden)^3

Acceleration of Particles disturbed by Vibrations

Go Acceleration of Particles = (4*(pi*Frequency of Vibration)^2*Amplitude of Vibration)

Velocity of Particles disturbed by Vibrations

Go Velocity of Particle = (2*pi*Frequency of Vibration*Amplitude of Vibration)

Distance from Blast Hole to Nearest Perpendicular Free Face or Burden

Go Burden = sqrt(Diameter of Borehole*Length of Borehole)

Spacing for Multiple Simultaneous Blasting

Go Blasting Space = sqrt(Burden*Length of Borehole)

Wavelength of Vibrations caused by Blasting

Go Wavelength of Vibration = (Velocity of Vibration/Frequency of Vibration)

Velocity of Vibrations caused by Blasting

Go Velocity of Vibration = (Wavelength of Vibration*Frequency of Vibration)

Stemming at Top of Borehole to Prevent Explosive Gases from Escaping

Go Stemming at Top of Borehole = (0.7*Burden)+(Overburden/2)

Overburden given Stemming at Top of Borehole

Go Overburden = 2*(Stemming at Top of Borehole-(0.7*Burden))

Sound Pressure Level in Decibels

Go Sound Pressure Level = (Overpressure/(6.95*10^(-28)))^0.084

Diameter of Borehole using Minimum Length of Borehole

Go Diameter of Borehole = (Length of Borehole/2)

Distance from Blast Hole to Nearest Perpendicular Free Face or Burden Formula

Burden = sqrt(Diameter of Borehole*Length of Borehole)
B = sqrt(D_h*L)

What is Burden?

The burden is the distance from the blast hole to the nearest perpendicular free face. The true burden can vary depending upon the delay system used for the blast.

How to Calculate Distance from Blast Hole to Nearest Perpendicular Free Face or Burden?

Distance from Blast Hole to Nearest Perpendicular Free Face or Burden calculator uses Burden = sqrt(Diameter of Borehole*Length of Borehole) to calculate the Burden, The Distance from Blast Hole to Nearest Perpendicular Free Face or Burden is defined as the distance from the blast hole to the nearest perpendicular free face. Burden is denoted by B symbol.

How to calculate Distance from Blast Hole to Nearest Perpendicular Free Face or Burden using this online calculator? To use this online calculator for Distance from Blast Hole to Nearest Perpendicular Free Face or Burden, enter Diameter of Borehole (D_h) & Length of Borehole (L) and hit the calculate button. Here is how the Distance from Blast Hole to Nearest Perpendicular Free Face or Burden calculation can be explained with given input values -> 46.6295 = sqrt(3.07848000001231*6.15696000002463).

FAQ

What is Distance from Blast Hole to Nearest Perpendicular Free Face or Burden?

The Distance from Blast Hole to Nearest Perpendicular Free Face or Burden is defined as the distance from the blast hole to the nearest perpendicular free face and is represented as B = sqrt(D_h*L) or Burden = sqrt(Diameter of Borehole*Length of Borehole). Diameter of Borehole is any straight-line segment that passes through the center of the borehole & Length of Borehole is the longer dimension of the borehole.

How to calculate Distance from Blast Hole to Nearest Perpendicular Free Face or Burden?

The Distance from Blast Hole to Nearest Perpendicular Free Face or Burden is defined as the distance from the blast hole to the nearest perpendicular free face is calculated using Burden = sqrt(Diameter of Borehole*Length of Borehole). To calculate Distance from Blast Hole to Nearest Perpendicular Free Face or Burden, you need Diameter of Borehole (D_h) & Length of Borehole (L). With our tool, you need to enter the respective value for Diameter of Borehole & Length of Borehole 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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