Easily integratable to your preferred package through CSV files



Estimated reading: 2 minutes 1006 views

Average constraints are based on the average of any quantifiable parameter modeled block by block. To use this feature on MiningMath, the dataset must contain an auxiliary field/column which considers a value of what you wish to limit regarding the value of it in each block. Therefore, this feature controls the avarage value of the variable that has been modeled considering blocks that were mined in that single period. Since this feature is based on average parameters, the algorithm can use lower values to respect this target and increase the NPV with higher ones.

This feature is usually applied on blending to combine low-grade and high-grade blocks in order to increase the profitability. Although, it could have a lot of other applications. Basically, any variable which could be could be modeled considering these assumptions could be controlled.

Video 1: Blending and other constraints.

Some examples using average are listed below:

  • Grade of a contaminant on the plant.

  • Haulage distance, based on the destination each block.

  • Blasting material consumptions.

  • CO2 and noise emissions, energy and water consumption and other socio-enviromental.

The user can define:

  • Minimum and maximum average limits.

  • Different limits for different materials.

  • Different limits for different intervals.

  • Different limits for different destinations.

  1. Create auxiliary fields in the block model, quantifying the information to be controlled.

  2. During the importation, assign the column to be blended to Grade (Figure1).

  3. On the Average tab, input minimum and maximum limits for each variable (Figure 2a), period range (Figure 2b), other weights to be considered (Figure 2c) and destination (Figure 2d).

Figure 1: During the importation, Cu and Au are assigned to "Average".
Figure 2: Fields where the user can input limits (A), for each period range (B), Weights (C) and each destination (D).
Share this Doc


Reblocking is a method used to decrease the number of blocks in a block model by...

Floating-point numbers

Same scenario, different results? Is it possible to find different results for t...


MiningMath supports and encourages the translation of its knowledge base to mult...

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...



Chat Icon Close Icon