Data Validation

1. Run Your First Optimization

Running a MiningMath optimization, using the Direct Block Scheduling technology for complex projects with several constraints, may demand hours only to validate if the formatting has been done properly. Therefore, we present here an efficient workflow to structure your project. It is important to mention that you can run each topic of this content individually at any time you finds it suitable, but, we strongly recommend to you take it to step by step to understand the main idea of the process

The next up pages will use the example below within Marvin Deposit and they aim to exemplify the following set of constraints:

  • Processing capacity: 10 Mt per year.

  • Total movement: 40 Mt per year.

  • Sum constraint of 4,000 processing hours per year, which is a detailed estimate of the plant throughput.

  • Vertical rate of advance as 150 m per year.

  • Copper grade limited until 0.7%.

  • Minimum Mining (50 m) and Bottom(100 m) width.

  • Restrict Mining Surface: "Surface-RM-offset-400m.csv", due to a processing plant in the area.

  • Stockpling using a fixed mining and rehandling cost of 0.9 $/t and 0.2 $/t.

1.1. Validate it First

In order to validate your data and cut the runtime of it, we strongly recommend running MiningMath Full with a production capacity bigger than the expected reserves. Thus you will get results faster to analyze them. This execution also generates the topography surface so that you can use it to create a force or restrict mining areas.

Example:

    • The expected life of mine vs production rate: 35-year project producing 10 Mt per year.

    • Expected reserve: 350 Mt.

    • Set up a scenario with 1,000 Mt in the processing plants per period without stock piles and any other constraint.

Questions:

    1. Did the scenario run properly?

    2. Are the most of the positive economic values from process inside this surface?

    3. Is the mining happening in areas that has make sense?

    4. Is there a reasonable number of periods of life of mine?

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