Burden Suggested in Konya Formula Calculator

Konya Formula:

\[ B = (3.15 \times D_e) \times \left(\frac{SG_e}{SG_r}\right)^{\frac{1}{3}} \]

Burden Suggested:

1. What is Burden Suggested in Konya Formula?

Definition: The Konya formula calculates the optimal burden distance for blasting operations based on explosive diameter and specific gravities.

Purpose: It helps mining and construction professionals determine the safe and effective distance from blast holes to free faces.

2. How Does the Calculator Work?

The calculator uses the Konya formula:

\[ B = (3.15 \times D_e) \times \left(\frac{SG_e}{SG_r}\right)^{\frac{1}{3}} \]

Where:

\( B \) — Burden distance (meters)
\( D_e \) — Diameter of explosive (meters)
\( SG_e \) — Specific gravity of explosive
\( SG_r \) — Specific gravity of rock

Explanation: The formula accounts for explosive diameter and the density ratio between explosive and rock.

3. Importance of Burden Calculation

Details: Proper burden calculation ensures efficient rock breaking, minimizes flyrock hazards, and optimizes explosive use.

4. Using the Calculator

Tips: Enter explosive diameter in meters, specific gravities for both explosive and rock. All values must be > 0. Results include ±5% tolerance.

5. Frequently Asked Questions (FAQ)

Q1: Why is there a ±5% tolerance?
A: The 5% accounts for variations in field conditions, rock heterogeneity, and practical implementation factors.

Q2: What's a typical specific gravity for explosives?
A: Common explosives range from 0.8 to 1.8 SG (e.g., ANFO ~0.8, emulsion ~1.2, TNT ~1.6).

Q3: How does rock type affect the burden?
A: Harder rocks (higher SG) require smaller burdens, while softer rocks allow larger burdens.

Q4: When would I adjust the 3.15 constant?
A: The constant may vary slightly (3.0-3.3) based on explosive type and desired fragmentation.

Q5: How accurate is the Konya formula?
A: It provides good initial estimates but should be field-verified and adjusted for site-specific conditions.