Specific Gravity Of Explosive Using Burden Suggested In Konya Formula Calculator

Konya Formula:

\[ SGe = SGr \times \left( \frac{B}{3.15 \times De} \right)^3 \]

Specific Gravity of Explosive (SGe):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is the Konya Formula?

The Konya Formula is used to calculate the specific gravity of explosive based on specific gravity of rock, burden, and diameter of explosive. It provides a relationship between these parameters for optimal blast design in mining and construction operations.

2. How Does the Calculator Work?

The calculator uses the Konya Formula:

\[ SGe = SGr \times \left( \frac{B}{3.15 \times De} \right)^3 \]

Where:

\( SGe \) — Specific Gravity of Explosive
\( SGr \) — Specific Gravity of Rock
\( B \) — Burden (distance from blast hole to nearest free face)
\( De \) — Diameter of Explosive

Explanation: The formula establishes a cubic relationship between the burden-to-diameter ratio and the specific gravity ratio of rock to explosive.

3. Importance of Specific Gravity Calculation

Details: Accurate calculation of specific gravity of explosive is crucial for proper blast design, ensuring optimal fragmentation, minimizing vibration, and improving overall blast efficiency in mining and construction operations.

4. Using the Calculator

Tips: Enter specific gravity of rock (dimensionless), burden in meters, and diameter of explosive in meters. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is specific gravity of explosive?
A: Specific Gravity of Explosive is the ratio of density of explosive to density of reference substance (usually water).

Q2: Why is burden important in blast design?
A: Burden is the distance from the blast hole to the nearest perpendicular freeface and is critical for determining proper explosive loading and achieving desired fragmentation.

Q3: What are typical values for specific gravity of rock?
A: Typical values range from 2.0 to 3.0 for most common rocks, with granite around 2.6-2.7 and limestone around 2.3-2.7.

Q4: How does explosive diameter affect the calculation?
A: Larger diameter explosives generally require different burden distances and affect the specific gravity calculation through the cubic relationship in the formula.

Q5: When is the Konya Formula most applicable?
A: The Konya Formula is particularly useful for preliminary blast design and when specific explosive properties need to be matched to rock characteristics.