Sitemap

Home

Rock Mass Rating Calculator — Free online RMR calculator based on the Bieniawski 1989 classification system.

RMR Guide Overview — Comprehensive guide to the Rock Mass Rating system and how to use it.
RMR Parameters Explained — Detailed breakdown of all six Bieniawski 1989 rating parameters with full tables and field tips.
RMR Classification Table — Complete rating table showing class boundaries, stand-up times, and cohesion values.
How to Calculate RMR — Step-by-step walkthrough of the Rock Mass Rating calculation process.
RMR Worked Examples — Three fully solved RMR problems for tunnel, slope, and foundation applications.

Rock Mass Tools Overview — Collection of free online geotechnical calculators and classification tools.
Q-System Calculator — Calculate Barton's Q-value online and compare with RMR using the empirical correlation.
RQD Calculator — Calculate Rock Quality Designation from core log data or volumetric joint count.

Geotechnical Guides Overview — Practical engineering guides for applying rock mass classification results.
What Is Rock Mass Rating? — Introduction to the RMR system, its history, and applications in geotechnical engineering.
RMR Parameters Explained (Guide) — Field-oriented guide to assessing each of the six RMR parameters on site.
Tunnel Support from RMR — Use your RMR result to determine rock bolt spacing, shotcrete thickness, and steel set requirements.

About — Learn about the RMR Calculator, its technical basis, target users, and commitment to free access.
Privacy Policy — How we handle data, analytics, localStorage, and your privacy.
Terms of Service — Usage terms, warranty disclaimer, liability limitations, and intellectual property.
Contact — Send us a message with questions, bug reports, feature requests, or technical queries.
Sitemap — This page. A complete directory of all pages on the site.