One should also observe at this point that one-half of the capacity of the stockpile is in the lower 1/5 of the pile. Increasing the height of the stockpile by 26% results in a doubling of the stockpile capacity. This means that the capacity of the conical pile grows very rapidly as the height (and hence the radius of the pile) increases. Note that the capacity of the conical stockpile varies with the cube of the radius of the pile. The total stockpile capacity is given by:ģ.14 (Tan A)R³ D/3000 = capacity in metric tons…………………(1)Ī = angle of repose for material to be stockpiled The conical stockpile is the simplest and easiest to analyze. Stockpiles fall into two general categories: conical and elongated. The Adjusted fill volume is the fill volume with the shrinkage factor applied to it.Calculating Stockpile Capacity: Once the minimum storage capacities which will assure maximum mill output are known, the appropriate stockpile configuration must be determined.The Adjusted cut volume is the cut volume with the haul bulkage factor applied to it.The Adjusted fill volume is the fill volume with the shrinkage factor applied to it.Īfter haul bulkage and/or shrinkage have been applied, the software shows the In situ volume (original volume) and the Adjusted volume: The Adjusted cut volume is the cut volume with the haul bulkage factor applied to it.Ī shrinkage factor allows for compaction in fill material. If required, enter the Haul bulkage or Shrinkage factor to apply to the calculation.Ī haul bulkage factor allows for the expansion of cut material as it is excavated. Where the surface is above the perimeter surface, then cut is computed (stockpile) where the surface falls below the perimeter surface, then fill is computed (depression).Ĭalculates the surface area, and using the specified depth can calculate the volume. The selected surface is treated as the final surface and the initial surface is defined from the perimeter points of the selected surface. This works in a similar way to Surface to surface except with only one surface. Volumes are computed only in areas where the initial and final surfaces overlap. Where the Initial surface is above the Final surface, then cut is computed where the Initial surface is below the Final surface, then fill is computed. The Initial surface, is the original surface and Final surface is the design surface or surface after excavation. Where the surface is below the elevation, fill will be computed where the surface is above the elevation, cut will be computed.Ĭalculates the cut and fill volumes between two surfaces. Only the cut volume is computed.Ĭalculates the volume of material needed to fill a surface up to the specified elevation.Ĭalculates the cut and fill volumes between a single surface and the specified elevation. In the Compute volume screen, select the required calculation method:Ĭalculates the volume of a single surface above the specified elevation. Enter the name for the surface and tap Accept. select at least three 3D points in the map and then from the tap and hold menu, select Compute volume. See Creating a surface from existing points.Īlternatively, to create a surface at the same as time as computing a volume. ![]() You can import TTM files from your office software or generate them from the map in General Survey. You can calculate volumes from surfaces stored in triangulated terrain model (TTM) files.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |