Vibration safety
Calculation blasting distance
$0.99 · Designed for iPad
Developed in accordance with GB 6722-2014 Blasting Safety Regulations.
Perform accurate vibration-safety distance calculations anytime — fully offline.
This application is developed in accordance with the National Standard of the People’s Republic of China — GB 6722-2014 “Blasting Safety Regulations”,
and is designed to calculate the allowable safety distance of blasting vibration.
Required Parameters:
• K, α (Coefficient and Attenuation Index):
Represent the influence of geological and topographical conditions between the blasting site and the protected object, determined through field tests.
• V (Allowable Particle Velocity):
The maximum particle velocity that the protected object can safely withstand at its location, measured in cm/s.
• Q (Charge Weight of Explosives):
The total explosive charge used for blasting; for delayed blasting, the largest single segment charge should be used, measured in kilograms (kg).
Calculation Result:
• R (Allowable Safety Distance):
The minimum safe distance (in meters) ensuring that vibration from blasting does not exceed the allowable level for the protected object.
Formula:
R = (K / V)^(1/α) × Q^(1/3)
This formula is widely applied in mining, tunneling, and construction blasting safety analysis to evaluate the potential impact of blasting vibrations on nearby structures and facilities.
Ratings & Reviews
Version 2.0 — Completely Rebuilt in Swift!
This update marks a major milestone: the entire app has been rewritten in Swift using SwiftUI for better performance, smoother interaction, and a cleaner interface.
• Modern SwiftUI Interface – Faster, smoother, and more intuitive.
•. Accurate Formula Display – matching GB 6722-2014 standards.
•. Parameter Reference Page – Detailed definitions and standard sources included.
• Fully Offline Operation – No internet required for calculations or display.
• Improved Performance and Stability.
Thank you for your continued support! Your feedback helps us make the app even better.
The developer, Quzhou RARHe Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Quzhou RARHe Technology Co., Ltd.
- Size
- 1.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 16 or later.
- iPhone
Requires iOS 16 or later. - iPad
Requires iPadOS 16 or later. - iPod touch
Requires iOS 16 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English and Simplified Chinese
- Age Rating
4+
- 4+
- Copyright
- Copyright © 2025 RARHe Inc.
