Diameter of Borehole using Burden Calculator

✖Burden is the distance from the blast hole to the nearest perpendicular free face.ⓘ Burden [B]			+10% -10%
✖Length of Borehole is the longer dimension of the borehole.ⓘ Length of Borehole [L]			+10% -10%

✖Diameter of Borehole is any straight-line segment that passes through the center of the borehole.ⓘ Diameter of Borehole using Burden [D_h]

⎘ Copy

👎

Formula

✖

Diameter of Borehole using Burden

Formula

`"D"_{"h"} = ("B")^2/"L"`

Example

`"9.70297ft"=("14ft")^2/"20.2ft"`

Calculator

LaTeX

Reset

👍

Download Vibration Control in Blasting Formulas PDF

Diameter of Borehole using Burden Solution

STEP 0: Pre-Calculation Summary

Formula Used

Diameter of Borehole = (Burden)^2/Length of Borehole
D_h = (B)^2/L
This formula uses 3 Variables

Variables Used

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

STEP 1: Convert Input(s) to Base Unit

Burden: 14 Foot --> 4.26720000001707 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

D_h = (B)^2/L --> (4.26720000001707)^2/6.15696000002463

Evaluating ... ...

D_h = 2.95746534654648

STEP 3: Convert Result to Output's Unit

2.95746534654648 Meter -->9.7029702970297 Foot (Check conversion here)

FINAL ANSWER

9.7029702970297 ≈ 9.70297 Foot <-- Diameter of Borehole

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Civil » Geotechnical Engineering » Vibration Control in Blasting » Parameters of Vibration Control in Blasting » Diameter of Borehole using Burden

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

Ishita Goyal has verified this Calculator and 2600+ more calculators!

< 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)

Diameter of Borehole using Burden Formula

Diameter of Borehole = (Burden)^2/Length of Borehole
D_h = (B)^2/L

What is Borehole?

A borehole is a narrow shaft bored in the ground, either vertically or horizontally. A borehole may be constructed for many different purposes, including the extraction of water, other liquids or gases.

How to Calculate Diameter of Borehole using Burden?

Diameter of Borehole using Burden calculator uses Diameter of Borehole = (Burden)^2/Length of Borehole to calculate the Diameter of Borehole, The Diameter of Borehole using Burden is defined as the diameter of borehole when we have the value of burden and length of borehole . Diameter of Borehole is denoted by D_h symbol.

How to calculate Diameter of Borehole using Burden using this online calculator? To use this online calculator for Diameter of Borehole using Burden, enter Burden (B) & Length of Borehole (L) and hit the calculate button. Here is how the Diameter of Borehole using Burden calculation can be explained with given input values -> 32.15223 = (4.26720000001707)^2/6.15696000002463.

FAQ

What is Diameter of Borehole using Burden?

The Diameter of Borehole using Burden is defined as the diameter of borehole when we have the value of burden and length of borehole and is represented as D_h = (B)^2/L or Diameter of Borehole = (Burden)^2/Length of Borehole. Burden is the distance from the blast hole to the nearest perpendicular free face & Length of Borehole is the longer dimension of the borehole.

How to calculate Diameter of Borehole using Burden?

The Diameter of Borehole using Burden is defined as the diameter of borehole when we have the value of burden and length of borehole is calculated using Diameter of Borehole = (Burden)^2/Length of Borehole. To calculate Diameter of Borehole using Burden, you need Burden (B) & Length of Borehole (L). With our tool, you need to enter the respective value for Burden & Length of Borehole and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search