ORMAS is a free software for determining rock mass strength parameters, based on the Generalized Hoek-Brown failure criterion. The first version of this program was written in matlab as part of a college project in my previous life and recently I decided to rewrite it by java, html as well as php to make it available directly from the internet.

ORMAS is non-commercial and free to use. If you have questions or comments, please contact me at roozbehg@live.com.