GEOVIA Whittle is a strategic mine-planning software used in surface mines.
Mining Engineers use GEOVIA Whittle for:
- Pit Optimization
- Sensitivity Analysis
- Strategy options
- Life of Mine Schedule.
Learn how to create and view the Excel reports from Simultaneous Optimization (SIMO) in GEOVIA Whittle.
SIMO is a GEOVIA Whittle advanced strategic scheduling tool used to optimize inputs simultaneously over the life of mine and unlock the hidden Net Present Value (NPV). SIMO concurrently optimizes schedule, cut-off, stockpile and blend as shown in Figure 1.
Figure 1: Simultaneous Optimization process
Before running SIMO, users must determine the final pit shell and the intermediate pit shells to which they will mine.
SIMO benefits include:
- Processing high-grade material at the early stages over the life of mine
- Mining companies can deploy equipment and workers to mine at a higher rate in specific periods when they are needed
- SIMO can return a high NPV because it uses cut-off optimization. In the process of cut-off optimization, the processing limit stays constant and the cut-off raises in specific periods (usually the early periods)
- SIMO sends the material that is below the cut-off to either a stockpile or the waste dump.
After running SIMO, it is recommended to view the results. These results are presented in a multi-tabbed Microsoft Excel reports.
To view the results, users should:
- Right-click the SIMO node then select View Simo Report as shown in Figure 2.
Figure 2: Process to view SIMO reports
Microsoft Excel starts and displays the Whittle SIMO Output Reporting page.
Note: Microsoft Excel may take some time to open the page if users are running large projects.
- If necessary, enable the macros so that the Excel reports can be processed as shown in Figure 3.
Figure 3: Enable the macros
A list of Excel reports is displayed as shown in Figure 4.
Figure 4: List of Excel reports
To view a report, users have to click a tab or one of the report hyperlinks as shown in Figure 5.
Figure 5: How to view a report
Figures 6 and 7 show the summary-Cash flow and the Summary-Material reports respectively.
Figure 6: Summary Cash flow report
Figure 7: Summary Material report
Note: The processed Excel file will be saved in the working directory with the name “node name’’_SimoReport.xlsb as shown in Figure 8 and 9.
Figure 8: Node name in Whittle
Figure 9: SIMO Report name in any folder of choice for additional processing/use
Note: When clicking on View Simo Report from the SIMO node for the second time, the report opens faster than the first time.