BDBLASTDESIGNPattern & delay studio

Surface bench blasting

Shape the blast.
See the outcome.

An interactive workspace for pattern geometry, initiation timing and first pass performance estimates.

Live plan view

Blast pattern

● Hole

Auto pattern Free face OverallRowRow Link delay msDrag or select a hole

100%

Delay colours0 ms144 ms287 ms39 connections

Applied design parameters

Pattern: Staggered
Rows × holes/row: 5 × 8
Total holes: 40
Burden: 3.5 m
Spacing: 4.2 m
Bench height: 10 m
Subdrill: 1 m
Hole depth: 11 m
Stemming: 3 m
Hole diameter: 115 mm
Charge / hole: 68 kg
Max charge / delay: 68 kg
Inter-hole / row delay: 17 / 42 ms
Maximum firing time: 287 ms
Powder factor: 0.178 kg/t · 0.463 kg/m³
Total explosive: 2,720 kg
Rock mass: 15,288 t
Predicted PPV / criterion: 3.63 / 10 mm/s
Vibration status: Within model limit

Advisory concept design. Verify all values, site constants, initiation limits and current statutory requirements before use.

↔ B 3.5 m ↕ S 4.2 m⌀ 115 mm

GeometryBalanced

Spacing : burden = 1.2

Charge column8 m

Hole depth less stemming

Timing287 ms

0 duplicate delay group(s)

VibrationWithin model limit

36% of entered criterion