Rocscience occasionally keeps legacy software in their “Downloads” section under “Previous Versions.”
Roclab 1.0 is a freeware application designed to determine rock mass strength parameters using the Generalized Hoek-Brown failure criterion. It allows engineers to input lab triaxial test data or estimate rock properties based on Geological Strength Index (GSI), material constant (mi), and disturbance factor (D). Roclab 1.0 Download
Follow these steps after completing your Roclab 1.0 download: material constant (mi)
Roescience no longer prominently features Roclab 1.0 on their main downloads page, but they maintain a legacy FTP section. As of this writing, you can still access the official installer via: Roclab 1.0 Download