Burden given Spacing for Multiple Simultaneous Blasting Calculator

✖Blasting Space denotes the lateral distance on centers between holes in a row.ⓘ Blasting Space [S_b]			+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.ⓘ Burden given Spacing for Multiple Simultaneous Blasting [B]

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Burden given Spacing for Multiple Simultaneous Blasting

Formula

`"B" = ("S"_{"b"})^2/"L"`

Example

`"12.67327ft"=("16ft")^2/"20.2ft"`

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Burden given Spacing for Multiple Simultaneous Blasting Solution

STEP 0: Pre-Calculation Summary

Formula Used

Burden = (Blasting Space)^2/Length of Borehole
B = (S_b)^2/L
This formula uses 3 Variables

Variables Used

Burden - (Measured in Meter) - Burden is the distance from the blast hole to the nearest perpendicular free face.
Blasting Space - (Measured in Meter) - Blasting Space denotes the lateral distance on centers between holes in a row.
Length of Borehole - (Measured in Meter) - Length of Borehole is the longer dimension of the borehole.

STEP 1: Convert Input(s) to Base Unit

Blasting Space: 16 Foot --> 4.87680000001951 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 = (S_b)^2/L --> (4.87680000001951)^2/6.15696000002463

Evaluating ... ...

B = 3.86281188120357

STEP 3: Convert Result to Output's Unit

3.86281188120357 Meter -->12.6732673267327 Foot (Check conversion here)

FINAL ANSWER

12.6732673267327 ≈ 12.67327 Foot <-- Burden

(Calculation completed in 00.020 seconds)

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Home » Engineering » Civil » Geotechnical Engineering » Vibration Control in Blasting » Parameters of Vibration Control in Blasting » Burden given Spacing for Multiple Simultaneous Blasting

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Birsa Institute of Technology (BIT), Sindri

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< 17 Parameters of Vibration Control in Blasting Calculators

Burden Suggested in Langefors' Formula

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

Frequency of Vibration given Acceleration of Particles

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

Burden Suggested in Konya Formula

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

Amplitude of Vibrations given Acceleration of Particles

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

Distance from Explosion to Exposure given Overpressure

Go Distance from Explosion to Exposure = ((226.62/Overpressure))^(1/1.407)*(Maximum Weight of Explosives per Delay)^(1/3)

Overpressure due to Charge Exploded on Ground Surface

Go Overpressure = 226.62*((Maximum Weight of Explosives per Delay)^(1/3)/Distance from Explosion to Exposure)^(1.407)

Amplitude of Vibrations using Velocity of Particle

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

Frequency of Vibration given Velocity of Particle

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

Frequency of Vibrations caused by Blasting

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

Burden given Stemming at Top of Borehole

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

Diameter of Borehole using Burden

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

Length of Borehole using Burden

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

Length of Borehole given Spacing for Multiple Simultaneous Blasting

Go Length of Borehole = (Blasting Space)^2/Burden

Burden given Spacing for Multiple Simultaneous Blasting

Go Burden = (Blasting Space)^2/Length of Borehole

Overpressure given Sound Pressure Level in Decibels

Go Overpressure = (Sound Pressure Level)^(1/0.084)*(6.95*10^(-28))

Minimum Length of Borehole in Meter

Go Length of Borehole = (2*25.4*Diameter of Bore Pith Circle)

Minimum Length of Borehole in Feet

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

Burden given Spacing for Multiple Simultaneous Blasting Formula

Burden = (Blasting Space)^2/Length of Borehole
B = (S_b)^2/L

What is Burden?

The burden is the distance from a single row to the face of the excavation, or between rows in the usual case where rows are fired in sequence.

How to Calculate Burden given Spacing for Multiple Simultaneous Blasting?

Burden given Spacing for Multiple Simultaneous Blasting calculator uses Burden = (Blasting Space)^2/Length of Borehole to calculate the Burden, The Burden given Spacing for Multiple Simultaneous Blasting is defined as the distance from the blast hole to the nearest perpendicular free face. Burden is denoted by B symbol.

How to calculate Burden given Spacing for Multiple Simultaneous Blasting using this online calculator? To use this online calculator for Burden given Spacing for Multiple Simultaneous Blasting, enter Blasting Space (S_b) & Length of Borehole (L) and hit the calculate button. Here is how the Burden given Spacing for Multiple Simultaneous Blasting calculation can be explained with given input values -> 41.99475 = (4.87680000001951)^2/6.15696000002463.

FAQ

What is Burden given Spacing for Multiple Simultaneous Blasting?

The Burden given Spacing for Multiple Simultaneous Blasting is defined as the distance from the blast hole to the nearest perpendicular free face and is represented as B = (S_b)^2/L or Burden = (Blasting Space)^2/Length of Borehole. Blasting Space denotes the lateral distance on centers between holes in a row & Length of Borehole is the longer dimension of the borehole.

How to calculate Burden given Spacing for Multiple Simultaneous Blasting?

The Burden given Spacing for Multiple Simultaneous Blasting is defined as the distance from the blast hole to the nearest perpendicular free face is calculated using Burden = (Blasting Space)^2/Length of Borehole. To calculate Burden given Spacing for Multiple Simultaneous Blasting, you need Blasting Space (S_b) & Length of Borehole (L). With our tool, you need to enter the respective value for Blasting Space & Length of Borehole 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 Burden?

In this formula, Burden uses Blasting Space & Length of Borehole. We can use 2 other way(s) to calculate the same, which is/are as follows -

Burden = (3.15*Diameter of Explosive)*(Specific Gravity of Explosive/Specific Gravity of Rock)^(1/3)
Burden = (Stemming at Top of Borehole-(Overburden/2))/0.7

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