Blast Design Workflow

BlastCAD’s ring design module guides engineers through a structured, 4-step workflow to generate production-ready underground drill patterns directly from DTM surfaces — no manual coordinate calculations required.

Overview

Underground ring blasting requires precise hole placement relative to real geological surfaces: the drive floor, stope hanging wall, ring plane, and stope toe. BlastCAD’s workflow enforces this geometry at every step.

Select DTMs

Define the drive, stope, collar and target surfaces.

Draw Baseline

Trace the 3D drilling axis along the drive.

Place Rings

Position ring planes at burden intervals along the baseline.

Design Holes

Generate holes from templates with rig constraints applied.

Open the Ring Workflow by clicking the Ring Design button in the Canvas Toolbar. A step-by-step panel appears in the left sidebar, replacing the Explorer Panel during the design session.

Sections in this Chapter

Ring Workflow — Detailed guide to each step of the ring design process.
Hole Parameters — All hole data fields, their engineering meaning, and how they are calculated.

Blast Animation

Once your blast is fully designed with delays assigned, you can run a Blast Animation to visualize the firing sequence in the 3D canvas.

Each hole fires at its assigned delay time — the animation shows the detonation expanding outward in time sequence, making it easy to verify chevron, echelon, or ringwise firing patterns.

Controls: Play, Pause, Speed multiplier, Reset, and optional sound effects.

See Navigation & Viewport → Blast Animation for the full guide.