Project Reserves

Use the Project Reserves option to generate a reserve report that is more representative of a final pit design. All you need is a pit bottom and a projection angle for the burden. Project Reserves will take the given pit bottom and register it to your bottommost horizon and run reserves on it. Next, it will project, at the given angle, to the next horizon floor and run reserves on that. The option continues this process to the uppermost horizon. This is a useful tool that helps to customise reserve reporting for your pit design.

Instructions

On the Rsvute menu, point to Reserves, and then click Project Reserves. Select a pit bottom to display the Report Reserves panel.

Horizons

This section contains a list of horizons. Select the horizons to be reported. Standard windows selection methods apply, such as Shift + click to select adjacent horizons and Ctrl + click to select non-adjacent horizons. You can also right-click in the section and click Select all. Only the selected horizons are reported. Rsvute still acknowledges that the other horizons exist, and hence the burden values are not affected by this list. If no horizons are specified, then all known horizons are reported.

Variables

This section contains a list of variables. Select the variables to be reported, for example OB, MD, AS, SU etc. Standard windows selection methods apply, such as Shift + click to select adjacent variables and CTRL + click to select non-adjacent variables. You can also right-click in the section and click Select all. Each variable corresponds to a grid. If the grid for a particular horizon/variable combination does not exist, a set of "...." will appear on the report instead of a value. If no variables are specified, then all known variables are reported.

Note:   If a variable does not appear in the list, it has not been defined in Grid Calc.

No Variables

Select this check box if you don't want variables to be reported and want a report solely on area and volume.

Burden

Select this check box if you want Rsvute to derive the overburden and interburden values. Rsvute does this by comparing the surfaces that make up each horizon, checking for overlap and volumes between each pair. In addition to the volumes, stripping ratios are also reported.

Note:   Because of the cell by cell checks and calculations required, selecting this check box will considerably slow the Rsvute execution time. If burden values are required on a report, it is much faster to calculate OB and MD (overburden and midburden) grids and report on these directly.

No standard

Select this check box if you want to report on user defined variables. Standard coal variables are not reported when this option is ticked.

Burden Projection Angle

Enter an angle between zero and ninety degrees for projecting the pit outline between horizons.

Classification

Reserves can be broken down by the three classification (distance) methods:

    • Measured
    • Indicated
    • Inferred

You can choose a single classification, all or none. If all classifications are requested, then the hypothetical reserves are also determined and reported.

Note:   In order for the classifications option to run, the .map files generate through the modelling process must be located within the current working directory. These files will be used to determine the distanced from the drillholes.

Click OK.

Press the Esc key to stop the reserve calculation.