Working out how and where to store the material.Calculating accurate costs for removing material (muck away).Knowing the volume of material after an excavation has taken place is important because: I had to hire a grab lorry as the volume would have been too much for a skip! When working on a large earth moving project it is even more critical to calculate this correctly.įun fact, the deepest hole ever dug was 7.5 miles into the earth, that’s a lot of soil! Having removed a small amount of earth in my garden I was surprised at how much volume the soil bulked out to. The bigger concern is controlling the diameter effectively as you have not mentioned if a barrier wall is going to be used to hold the stockpile in place on one side.Calculating bulking factors are an important element in earthworks / excavations projects big and small. Having twin drawpoints is an expensive proposition versus employing a narrow width apron feeder which will increase the amount of reclaim exponentially as the cone of depression in the stockpile can consume much of the stockpile that is in repose leaving little to push in or simply leave to create a barrier. What is the aggregate you wish to stockpile?Īre you intent on stockpiling under dome using a hanging conveyor or a simple tower conveyor with the tower in the center of the stockpile using a telescoping discharge tube fed from the head pulley discharge chute. What is the aggregate you wish to stockpile? Is the drive unit the head pulley or are you using a ground mounted drive unit with a hydraulic take up or a simple counterweight box in a pit using wire rope and pulleys to create belt tension?Ī one thousand ton stockpile is very small in actual size equivalent to 10 one hundred ton standard gauge railroad open top hopper cars. Are you using a 24 inch conveyor of some type? Is it cable supported or steel frame conveyor? It takes a lot of work to design a stockpile with twin draw points. You have not mentioned nothing in regard to the aggregate and whether you are mining it or purchasing a finished product like Halite and storing it under cover in a tall buildingĪre you intent upon using a conveyor with a stacking tube or a simple dumping arrangement with a steel tower and discharge chute? We need more information as a thousand tons of aggregate material is very small in the scheme of things. The live capacity is going to depend on the size of the draw point chutes and whether you intend to use air cannons and or vibrators as the cone of depression is going to be limited to the immediate diameter of the drawpoints and a little larger in radiiĪre you in the United States? If so you will be regulated by the Mining Safety and Health Administrations jurisdiction and oversight with 4 inspections per calendar year. Please help us to help us help you with this.
#Aggregate stockpile calculator free
Now I can start the task of designing the stockpile from scratch but I wondered if there is any free software/spreadsheet that can do this for meĪny assistance would be greatly appreciatedĪndy= Working capacity needs to be 1000T minimum (circa 625m3) Material will be crushed stone and I expect two reclaim feeders I am looking to calculate the live capacity of a conical stockpile with tunnel reclaim I Hope everyone is staying safe in these worrying times New print Nov., 2012.Īuthor of Book: ‘Belt Feeder Design And Hopper Bin Silo’Īdvisor / Consultant for Bulk Material Handling System & Issues.
#Aggregate stockpile calculator iso
Conveyor design basis is ISO (thereby book is helpful to design conveyors as per national standards of most of the countries across world). So inherently there will be some variation in the projected results.Īuthor of Book: ‘Engineering Science And Application Design For Belt Conveyors’.
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These will vary according to material condition (moisture content in the material or season, etc.). So 100% accuracy may not be necessary.Īlso, repose angle or sluff angle are not very rigid figures. It is not for the purpose of sale and money payment. You are estimating this quantity just for the purpose of knowing self reclaimable capacity. The material within these planes and hopper face is reclaimable material (live reclaimable material). I think sluff angle is few degree more than repose angle.įrom the reclaimed hopper edges draw the reclaiming planes at sluff angle. I think there is concept of sluff angle which is applicable to zone being reclaimed by collapsing stationary material.
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The material repose angle is in context of stockpiling or stacking operation and then resulting face angle to horizontal. However following information may be of use to you. I do not have a direct answer to your question.