• XP/Vista/Win7/Win8 (32 and 64 bit)
  • 10 GB hard disk space
  • 2 GB memory (RAM)


  • Win7/Win8 (32 and 64 bit)
  • 20 GB hard disk space
  • 4 GB memory (RAM)

Rock Mass Strength Analysis Using the Generalized Hoek-Brown Failure Criterion

version 1.0

Since its initial release in 2002, there have been numerous developments with regards to the Generalized Hoek-Brown criterion.


After careful consideration, we have decided that the new methodologies for determining the Hoek-Brown parameters will be incorporated into RocData 5.0. We have been pleased to provide you with RocLab as a free download for the past 12 years, and we encourage you to evaluate RocData 5.0 in its stead, since RocLab is no longer supported or distributed.


Thank you for your continued support of Rocscience. Click here to get a free trial of RocData 5.0.