The description of the available mining equipment is edited by this function. The productivity of the unit (crew) may vary from shift to shift. The average productivity rate is used for scheduling, however the production rate for the particular panel may be adjusted by setting the difficulty factor for that panel.
The unit may be assigned minimal and/or maximum height, so that the
extra rock will have to be mined
or correspondingly unmined coal will be left in the
seam if maximum miner height is less than combined
coal and rock parting thicknesses. These settings affect
the underground mining only.
The meaning of the production rate value is defined by rate unit setting. The difference between distance and linear feet of advance settings is that latter one is a combined length of all pathways mined (underground only).
The availability value of less than 1.0 will reduce effective production rate of the equipment.
The maintenance settings provide the ability to schedule a delay for routine or major maintenance/repair of the equipment based on the amounts produced.
If operational cost her hour is specified, the total cost will appear in the production report.
The recovery factor is to adjust amount of commodity mined from a given area to account for certain technical limitations of the equipment such as inability to mine out corners. For example, this has been used for mines that have borer-type miners that create rounded entries.
Under Advanced options the variation of equipment-related Difficulty Factor with time, depth, or bench number may be specified. Resulting from advanced options difficulty factor is a product of coefficients calculated for given date, thickness and bench number. The final difficulty factor used in calculations is a product of location-specific and equipment-specific difficulty factor.
In date column the difficulty for the date is the one for nearest later date, or last one if no later entry exist. For the thickness column the value of difficulty factor between two entries in the table is a linear approximation.The rehandle value is calculated in the same fashion and passed over to report, not being used in calculations. For example, shown in the dialog box below: mining on 6/1/2005 (difficulty factor 1.5) in a 4-foot seam (difficulty factor 1.5) would have a combined difficulty factor of 1.5 x 1.5 or 2.25. Rehandle and bench related difficulty factors are used for surface mining equipment.
Pulldown Menu Location: AdvMine
Keyboard Command: editcrews
File Name: \lsp\mineutil.arx