Week 11

DIAMOND

One More Thing to Build Prepare a One-Line Diagram for the electrical energy needs of your mining operation For energy needs met with fuel show the location and size of the fuel reserves – It is expected you will have diesel, gasoline, and aviation fuel at least

Show Your Detailed Drawings Show a plan view section of your main production and man shaft – The drawing should show size, thickness of lining materials, compartments, guides, areas for utility lines Have a drawing of your man cage Have a drawing of your supplies and materials cage Have a drawing of your skip

More Drawings Have a plan view section drawing of your two ventilation shafts – The drawings should show size, thickness of linings, and any utilities or escapeways going through them – Have a drawing of your main mine fan assembly Have a section drawing of each type of drift you will have – Examples – your ramp, the shaft bottom facilities on each level, the tunnels leading away from the shaft to the orebody footwall, your footwall access drifts, your cuts into the orebody, your ore pass Have a 3D drawing showing one of your drift and leaf entries coming off the footwall access and going into the orebody Have 3D drawings of your underground mine layout that shows your ore passes, access drifts, ramps etc.

Have Mine Operations Drawings Show a working drift of your mine in plan view – The drawing should show the size and travel path of your trucks – The drawing should have the turning and loading pattern of your loader Show your calculations of the cycle times for your equipment – Prepare your appendix on these calculations (turn it in) Remember an appendix is a mini-report that explains what you were calculating and how you calculated it. It is not just a table core dump

Have Drawing Showing the Operation of Your Ventilation System The ventilation pattern should be shown – It should include how you will split the air between two levels coming off of one shaft – Drawings should show a typical duct system going down a production entry with the fan drawing air out so as to suck fresh air into the face A drawing should provide a cross section of your duct and fan and identify the size of each Prepare the Appendix showing how you calculated your pressure drops and air volumes for sizing your main fan and the booster fans – Remember an appendix reports how you did things, not just a core dump of tables

Get Equipment Pictures Have pictures of your underground and surface production equipment and ancillary machines – You can probably get pictures from vendors brochures and the internet but – You need to add dimension information to the pictures Prepare appendices showing how you determined the number of each type of equipment that you would need – Remember you must explain how you calculated quantities, show example calculations, at least tables of calculations, and reports of results that you utilized in your main mine plan

More Appendices Prepare an appendix showing how you calculated your manning needs and how you got your salaries and fringe benefits – This appendix will likely support a summary manning table and cost in the main report

Report on How You Will Organize Your Final Report Explain the heading, subheading system you will use in your main text Explain how you will label figures and tables in your report and coordinate that labeling with your text heading structure Explain how you will name your appendices and how we will know which appendix goes with which section of the report Show the outline you anticipate using on your final report

Do Your Economics For your K2 zone – Assume one 4 caret high quality red diamond for every 600 tons of rock – Assume you will find one large high quality 10 to 15 caret red diamond every year Compile a capital cost schedule showing capital investments each year – The table should also show what the capital cost is for You will probably take your table of capital cost items that runs top to bottom and then run it left to right showing time period for each investment Be sure to add things you missed such as footings, fuel storage, and other items you find missing.

More Economics Prepare a similar table for operating expenses by year – You use a lot of contracted services so be sure to include them Now prepare a table of revenue coming in – Include money paid out in royalties – Assume your private land owners that have not already agreed to sell you their land will want 25% more royalty than the state The Autistic artisans will not sell out for any price

Combine Your Tables Produce a Cash Flow from the 3 tables Calculate the NPV, PVR, and IRR – These will not necessarily be the final numbers since it is anticipated you may have several things not finished in your tables.

And One More Thing This is the week to turn in your revised midterm report

COAL

One More Thing to Build Prepare a One-Line Diagram for the electrical energy needs of your mining operation For energy needs met with fuel show the location and size of the fuel reserves

Complete Tasks That Were Not Done the Last few Weeks Prepare a year by year Royalty and out of seam dilution schedule Run your ventilation simulations and size your fans – This will involve 3 points in time as outlined last week Present your final Belt Analyst and Slysel work

Mass Balance Your Prep Plant Trace a mass balance through your coal preparation plant – Determine the year by year tonnage of coarse and fine coal refuge (make sure water is accounted for in your mass balance) – Draw out your waste facilities Make sure their volume and capacity match the mass balance need

Planning Ahead on Prep When you go from #6 coal to Met coal you have a step up in production rate – Show how you will handle that with your coal preparation plant If you end up needing a new prep plant then use the old one to start #7 coal mining With your waste placement design show by design that you can mine the #7 coal without creating problems from your waste placement

Show Drawing Details Provide a section view with dimensions down your slope Provide a plan view across all shafts that you plan – The drawing should show shaft size, liner thickness, all compartments, etc. – Provide a drawing of any supply of man cages you may have

Report on How You Will Organize Your Final Report Explain the heading, subheading system you will use in your main text Explain how you will label figures and tables in your report and coordinate that labeling with your text heading structure Explain how you will name your appendices and how we will know which appendix goes with which section of the report Show the outline you anticipate using on your final report

Do Your Economics Compile a capital cost schedule showing capital investments each year – The table should also show what the capital cost is for You will probably take your table of capital cost items that runs top to bottom and then run it left to right showing time period for each investment Be sure to add things you missed

More Economics Prepare a similar table for operating expenses by year – Be sure to account for any contracted services Now prepare a table of revenue coming in – Include money paid out in royalties

Combine Your Tables Produce a Cash Flow from the 3 tables Calculate the NPV, PVR, and IRR – These will not necessarily be the final numbers since it is anticipated you may have several things not finished in your tables.

COPPER GOLD

Your Big Task – Sequence Your Pit Develop Stage Pits for Every 5 years of your 50 year mine life – Easy way to do is with the price fake method – low prices get progressively smaller richer pits Problem is these make thin shells of 50 feet and then jump 30 years at a time Can’t execute such a mine plan I can use it to map my best ore. – Multipit allows you to control step size

After You Sequence Your Pit Put in Your Benches and Roads Do not have a completely new road network every year. Run MSVALP to optimize your schedule and cut-off grades Run Your Economic Analysis.

Report on How You Will Organize Your Final Report Explain the heading, subheading system you will use in your main text Explain how you will label figures and tables in your report and coordinate that labeling with your text heading structure Explain how you will name your appendices and how we will know which appendix goes with which section of the report Show the outline you anticipate using on your final report