Rock Mechanics and Stress Analysis Simulations for the Mining, Civil and Geomechanics Industries.

MAP3D support:

OHMS is the agent for MAP3D. Contact Gerrit Kotze ( for technical support or training requirements.



Q:Is it true at intersection analysis that MAP3D identifies the parts of the model that will be used in analysis (i.e. active blocks) and only check those parts for errors to save computational time?

A: Correct.

Q:Also, i)say the mining sequence has changed in the same model geometry or ii) a new material type is introduced or iii) if blocks that were previously voids are filled, could there be new errors in the model, which were not previously indicated during intersection analysis?

A: If you change the mining sequence you will change the parts of the model that are in use. Hence the potential errors could change.

Q:Can MAP3D Faultslip perform non-linear analysis?

A: Yes e.g. faultslip, backfill and yielding pillars.

Q:If the model errors/warnings at the input stage lead to errors at intersection stage - why are there fewer errors at the intersection analysis than at the input stage?

A:At the input stage, all of the supplied geometry is checked. At the intersection stage, the parts of the geometry that are required in the analysis are identified, and only these are checked. This can change the number of elements subjected to testing for errors.

Q:Does the rock properties of the backfill have anything to do with the amount of errors at the intersection analysis?

A: No, only the parts of the geometry that are required at every mining step will be checked for errors.


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MAP3D support:

We provide the following services:
  • Administration of licenses (quotations, shipping of dongles).
  • Free telephonic, skype or email based technical support.
  • On-site Technical support.
  • Off-site Numerical Modelling courses using MAP3D.
  • On-site Numerical Modelling courses using MAP3D.

MAP3D consulting:

OHMS uses MAP3D in all 3D rock engineering problems, which requires numerical modelling:
  • Feasibility studies on all levels of accuracy.
  • Back analysis.
  • On-site Technical support.
  • Business plan modelling.
  • Third party reviews.
  • Shaft pillar extraction.
  • Integration with seismic data and geotechnical instrumentation.