This routine is parallel to the Place Panel and Underground Timing functions. The timing through the panels is performed as soon as the user picks the panel perimeter. The sequence of picking and all the associated parameters necessary for "replay" are stored in the same form as with the Timing routine. That allows you to modify the mine plan, equipment rates and/or calendar and obtain an updated plan without having to redo the sequence.
The routine goes through the following steps:
-- Prompt user for next panel to mine in.
-- Check if the picked panel is a part of the mine plan already.
Then prompts to pick an existing mine plan or to start new mine
plan. The existing plan is loaded in and rerun to obtain the
information about the availability of the equipment.
-- Bring up the dialog and prompt the user for various parameters and the part of the panel to be mined. The proposed mining is previewed along with the dates and tonnages associated with the proposed segment.
-- When editing is finished the colored and labeled timing blocks are displayed in the user-defined style and the whole process is repeated for the next panel.
The starting date of mining in the picked polyline depends on three dates: if the optional panel start date is specified and the unit is available this date is used. Otherwise if the unit is tied up within some other panel, the starting date is the date when the unit finished the last panel offset by the specified moving delay. Lastly if the unit has not been used in the mine plan at all, the start date for the panel is the same date as for the whole mine plan.
The portion of the panel to be mined is determined by the selection
made:
Whole perimeter The panel will be mined to the end of the panel or to the next pin point if present (retreat).
Distance Mining will advance a given distance along the centerline past the last mined point. A pin point will be added at the end of new segment. Use of this option on retreat is associated with automatic reassignment of advance development, followed by rerun of timing plan (advance and retreat use the same set of pin points).
Period and To Date are similar to Distance, since the program will automatically calculate a distance corresponding to given date.
When the Test button is used the portion to be mined is highlighted in the drawing and the timing and quantities results are displayed in the dialog.
The amount of time necessary to mine given portion of the panel depends on the following factors:
Equipment production rate (use Define
Equipment to modify)
Coal and Rock Attributes (Define Panel Attributes, Edit Panel
Attributes)
Difficulty Factor (may be specified as value or grid on per panel
basis or using Define Panel Attributes and by placing a text labels
on certain layer within the panels)
Extraction Ratio (pre-calculated based on pillars draw inside the
panel, but may be modified) Equipment Calendar assignments.
Report Options are the same as these used in Underground and Surface Timing Routines. The final results for the portion laid out during current session are displayed in the user-defined form using the Report Viewer.
The generated mining plan (the system of green centerlines) may be modified and rescheduled using Underground Timing routine.
Pulldown Menu Location: UnderGnd
Keyboard Command: pick_panel