Engineering Calculation Software

Coal Mine Roof Rating Software

Roof-rating moved off spreadsheets, auditable, comparable, safer. Full scenario comparison and team collaboration on a safety-critical calculation.

2025 · 2 months duration

CMRR calculation results with scenario comparison
  • 2 clicks

    Scenario comparison

  • Full

    Audit trail

The problem

A client was running CMRR calculations through spreadsheets alone, which was working for them but not at scale or when it required collaboration.

The solution

Built a purpose-built calculation engine implementing the Molinda & Mark (1994) NIOSH methodology. Every input, adjustment, and assumption logged.

Scenario comparison in 2 clicks: bolt length × roof type matrix. So now there's no more copy paste, no more broken cell references, and no more fat fingering formulas.

File uploads, track & audit changes, PDF/CSV export.

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