|
Process Help MOD2BLKS - create blocks, reserves and dependencies from a model |
|
Process Name |
Menu Path |
Link to Command Table |
|
MOD2BLKS |
Introduction
MOD2BLKS creates mining block strings, reserves file and dependencies suitable for use in Studio OP’s scheduler. It is sometimes appropriate to schedule block model data rather than create more precise mining shapes for scheduling. For example, if carrying out a pre-feasibility study, a strategic planning exercise or if the deposit is wide and tabular the model cells may be a good approximation of the shapes that would be mined and hence are suitable for scheduling.
Dependency control
By default, vertical dependencies are created between from a model cell to the cell directly below it.
Additional non-vertical dependencies can be created by using the additional parameters. These are used to specify up to four vectors, defined by number of model cells, that will be converted to dependencies. For example, setting Q1NX=2, Q1NY=0 and Q1NZ=1 will add a dependency from each cell to the cell two along to the right and one level down.
PIT, BENCH and PHASE attributes
PIT, BENCH and PHASE attributes are added to the mining block strings and the results files. The PIT value is hardcoded to 1. The BENCH value is taken from the model data definition. The PHASE attribute is either taken from the model file (using the PHASE field) or hardcoded to 1.
Files, Fields and Parameters
Input Files
|
Name |
I/O Status |
Required |
Type |
Description |
|
MODEL |
Input |
Yes |
Block Model |
The block model from which to create the mining block outlines and reserves. This must be a regular block model. You should also be aware of how many cells it contains – each model cell will produce mining block outline for use in the scheduler. If you have a geological resource model it is probable that you should use the REBLOCK process to regularise the model and increase its parent cell size. |
Output Files
|
Name |
I/O Status |
Required |
Type |
Description |
|
BLOCKS |
Output |
Yes |
Strings |
The output mining block perimeter strings. These are created at the top of each model cell. This will contain a BLOCKID value that is equal to the IJK value of the model cell from which it was created. It also contains the fields DPLUS, DMINUS and PFLOW which are used by the scheduler in Studio OP. |
|
RESULTS |
Output |
Yes |
Table |
The output results file. This contains the values from each cell and the VOLUME and TONNES of each cell. |
|
DEPEND |
Output |
Yes |
Table |
Output dependency file for use in Studio OP scheduling. This will contain the fields BLOCKID1, BLOCKID2, PERCENT and TYPE. |
|
DEPENDST |
Output |
Yes |
Table |
This is a string file that represents the dependencies that MOD2BLKS has created. It can be used for visualisation of the dependencies. |
|
WIRETR |
Output |
No |
Wireframe triangles |
Output mining blocks wireframe triangle file. Used for visualisation - contains DEPANIM field representing dependencies. |
|
WIREPT |
Output |
No |
Wireframe points |
Output mining blocks wireframe point file. Used for visualisation. |
Fields
|
Name |
Description |
Source |
Required |
Type |
Default |
|
DENSITY |
The model field which contains density values. This is used to calculate mining block tonnages. |
MODEL |
No |
Alphanumeric |
Undefined |
|
PHASE |
An optional model numeric PHASE field. If set this is transferred to the mining block reserves and strings. If not set the output PHASE number is 1. |
MODEL |
No |
Alphanumeric |
Undefined |
Parameters
|
Name |
Description |
Required |
Default |
Range |
Values |
|
DENSITY |
The default density to be used if the model file does not contain a density field or if the model density value is absent and SETABSNT=1. |
N |
- |
- |
- |
|
SETABSNT |
If set to 1 then absent model density values will be set to the default density value. The default value for SETABSNT is 1. |
Y |
0 |
0,1 |
0,1 |
|
Q1NX/Y/Z |
First quadrant: number of cells in X/Y/Z for dependency creation |
Y |
1 (X) 0 (Y) 1 (Z) | -10, 10 | -10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 |
|
Q1NX/Y/Z |
First quadrant: number of cells in X/Y/Z for dependency creation |
Y |
1 (X) 0 (Y) 1 (Z) | -10, 10 | -10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 |
|
Q2NX/Y/Z |
Second quadrant: number of cells in X/Y/Z for dependency creation |
Y |
0 (X) -1 (Y) 1 (Z) | -10, 10 | -10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 |
|
Q3NX/Y/Z |
Third quadrant: number of cells in X/Y/Z for dependency creation |
Y |
-1 (X) 0 (Y) 1 (Z) | -10, 10 | -10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 |
|
Q4NX/Y/Z |
Fourth quadrant: number of cells in X/Y/Z for dependency creation |
Y |
0 (X) 1 (Y) 1 (Z) | -10, 10 | -10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10 |
