What Is the Drill-and-Blast Tunnel Specific Charge & Powder Factor Calculator?
This tool computes drill-and-blast tunnel specific charge & powder factor calculator with high precision arithmetic.
How Does the Drill-and-Blast Tunnel Specific Charge & Powder Factor Calculator Work?
Models drill-and-blast heading rounds, cut hole burden, contour perimeter decoupling, specific powder factor (kg explosive per m³ in situ rock), and round advance efficiency.
Drill-and-Blast Tunnel Specific Charge & Powder Factor Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Models drill-and-blast heading rounds, cut hole burden, contour perimeter decoupling, specific powder factor (kg explosive per m³ in situ rock), and round advance efficiency.
How to Use the Drill-and-Blast Tunnel Specific Charge & Powder Factor Calculator
- Enter your parameters into the designated input fields to calculate the result immediately.
Step-by-Step Example Calculation
Drill-and-Blast Tunnel Specific Charge & Powder Factor Calculator Example
Input Values:
tunnelCrossSectionAreaM2:65
roundDrillDepthMeters:4.2
pullEfficiencyPct:92
totalExplosiveChargeKg:360
Worked Steps: Sample evaluation based on standard reference conditions.
Understanding Your Result
The calculated primary figure indicates the optimal or required kg/m³.
Factors That Affect the Result
- Measurement tolerances, operational variance, and real-world conditions.
When Should You Use This Calculator?
- Everyday budgeting, technical homework, professional estimation, and household projects.
Assumptions & Limitations
- Assumes standard atmospheric or environmental parameters unless specified.
Frequently Asked Questions
Calculation Accuracy & Reference Note
Double-precision IEEE 754 arithmetic with validated empirical constants.