THIS REPOSITORY IS SUPERCEDED BY: github.com/Mineflowcsm/mineflow

ULTPIT

Ultpit is a command line utility to calculate the ultimate pit for open pit mining operations. Currently the Lerchs and Grossmann algorithm is implemented.

Usage

Create a file of the regular block model ordered by x, y, z, realization. That is, the lowest x, lowest y, lowest z block is the first block in the file, and then it cycles fastest x, then y, then z, then realization. Currently, this must be pre-calculated economic block values. Ensure there are both positive and negative blocks. Air has an economic block value of 0.

To obtain the default parameter file run:

ultpit --params > params.json

Modify the parameters to be appropriate. Here is an example parameter file:

{
  "input" : {
    "type" : 1,
    "grid" : {
      "num_x": 60, "min_x": 800.0, "siz_x": 20.0,
      "num_y": 60, "min_y": 100.0, "siz_y": 20.0,
      "num_z": 13, "min_z": 100.0, "siz_z": 20.0 
    }
  },

  "precedence" : {
    "method" : 1,

    "slope" : 45.0,
    "num_benches": 8
  },

  "optimization" : {
    "engine" : 1
  }
}

Run ultpit:

ultpit params.json --input data.txt.gz --output optimized.txt

You will get, as output, a file with the same number of rows as your input data with zeros and ones. A zero indicates that the block should not be mined, and a one indicates that the block should be mined.

Compilation

dub --arch=x86_64

Roadmap

• Implement an interface to dimacs style programs
• Implement more precedence methods
• Implement the pseudoflow algorithm
• Clean up code
• 100% code coverage with unit tests

Contact

• E-mail -- matthewvdeutsch@gmail.com

License

Ultpit is licensed under the MIT license. See the LICENSE file for details