O-pitblast Crack ((install))

| Factor | Effect on “O‑Crack” | |--------|----------------------| | | Too large → crack arrests; too small → excess backbreak | | Stemming length | Short → cratering & gas loss; long → poor crack extension | | In‑situ stress | High horizontal stress → preferential crack orientation | | Joint sets | Cracks follow pre‑existing planes, not radial | | Explosive VOD | Higher VOD → more radial cracks but shorter gas penetration |

If you cannot afford O-pitblast, do not resort to a crack. Instead: O-pitblast Crack

The use of "cracked" (pirated) versions of O-Pitblast is strictly prohibited and carries significant risks: damage zone prediction for rock blasting O-pitblast Crack

The distance between rows and holes to ensure energy is distributed evenly. O-pitblast Crack