FPC Assignment 1

Go to Your Project and Fire-Up MSOPIT

Go Directly to Design Strategy

Pick your resource option and run

Size Your Pit Reserves from the Report

I can see all my oreIs sulfide

I can see I have432,517,319 tonnes ore386,365,687 tonnes waste

Setting Production Rate

• Back half of room – you will mine your tonnage over 40 years

• Front half of room – you will mine your tonnage over 25 years

• Create and Word Document– Calculate out your annual ore and waste tonnages– Put the results in your word document

• Assume even ore and waste tonnage each year– Your mill is a 1 mile drive over level once you leave the mine– Your leach is 1.5 mile at +2.5% grade uphill– Your dump is 2.5 miles at +1.5% grade uphill

Climate

• Right half the room– You are near Fairbanks Alaska

• Left half the room– You are near Mexico City

Decision Time

• Determine how many days per year you can run– Write this in a word document and tell me why

• Determine how many shifts per day you will run and how long the shifts will be– Write your results in a word document

• Determine how many hours you will plan on– Then assume that you will only be able to utilize

93% of those hours due to pit delays– Write your results for number of hours per year.

Keep on Truckin

• Determine your width of road and the turn radius of your sharpest turn.– Hint – click a point hold down right mouse key and drag for

distance• Look at trucks– Need absolute min 2.5 times truck width – 3 times

desirable• Suppose your road is 30 meters wide (about 98 feet)

– Maximum truck width about 33 feet

– Check turn radius too.• Which Cat trucks are feasible to use?

Consider Your Loader

• Your benches are 15 meters high• Your loader must have a 15 meter dig height• Which loaders are feasible to use?

Narrow Your Truck Field

• Identify 3 possible trucks that might work– You may want to consider• Trucks of 250 tons or better require special haul roads• To many little trucks could be a nightmare number

running around• To few of loading points will cause mill headgrade

problems (think at least 3 load points)

– For porphyry copper ore determine whether the trucks are weight or volume limited

Look Again at Your Loaders

• Assume medium dig for a hydraulic shovel, hard for a cable– What kind of fill factors can you get on your

bucket or dipper.• Match your 3 trucks with loaders– Make sure your loader can get over the side of

your truck– Calculate the number of passes and fill factors you

will need to load your truck

Get Your 3 possible Equipment Sets

• Have it ready to turn in on Thursday.