MiningMath

MiningMath

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Increasing the sustainable value and facilitating the decision-making process of mining projects since 2010

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Guaranteed Solutions

Estimated reading: 2 minutes 458 views

Multiple, complex constraints increase the likelihood of not finding or not existing feasible solutions. Nonetheless, MiningMath always delivers a solution, even if it could not honor the entire set of constraints imposed or had to reduce the NPV to find a feasible solution.

When dealing with highly constrained problems, other technologies might take hours or days to realize there is no feasible solution. The reason for that is because they usually employ generic optimization algorithms, not suitable to take decisions in a mining problem. In this case, the only option is to prepare a second execution with more flexible constraints, but still with no guarantee of feasibility.

On MiningMath, once an infeasible solution is detected, the algorithm takes decisions on which (less relevant) constraints should be flexible, returning some warnings to the user at the report. This is performed along the optimization process, without compromising the runtimes. 

The constraints priority order, from the highest to the lowest, is depicted in Figure 1.

  1. Force+Restrict Mining together using the same surface.

  2. Slope Angles.

  3. Force or Restrict Mining, same concept as above, but the surfaces here are corrected according to slopes and it might have some differences.

  4. Minimum Bottom and Mining width, mining length.

  5. Total Production Capacity

  6. Vertical rate of advance.

  7. Average and Sum, modeled as strong penalties in the objective function

  8. Time limit

  9. Improve the NPV

Figure 1: Constraints hierarchy order.

CONTENTS

Imperial System

For importing databases, MiningMath uses the metric system exclusively. In case ...

In-depth MiningMath

This tutorial provides a detailed guidance to the pages in the knowledge base fo...

Theory Validation

MiningMath’s results are only possible due to its proprietary Math Program...

Guaranteed Solutions

Multiple, complex constraints increase the likelihood of not finding or not exis...

MiningMath Uniqueness

MiningMath allows mining managers to improve their strategic analysis through ri...

Time Limit

It is possible to indicate a time limit in hours before running a scenario in th...

Must read articles

In order to take the maximum of MiningMath’s Optimization we recommend this fl...

Tutorials

Geometry

Theory

Workflow

Formatting the Block Model

The main focus here is on the requirements. Try to pay attention to the header...

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