Vertically, they lower the uncertainty in Z values, which is proportional to the resolution. Estimate the volume of an excavated pile of material in cubic yards. Horizontally, high-resolution photogrammetric results create more precise stockpile models, and thus better volume measurement accuracy than ones interpolated from certain measured points. Enter the Length, Width & Depth of your Project Area. A photogrammetric survey with a fine ground sampling distance (GSD, which indicates the actual distance each pixel represents) is able to better describe irregular stockpiles in detail. Use this handy calculator to estimate how much aggregate you will need for your project. When it comes to stockpile volume measurements, stockpiles do not conform to a perfect shape. The first project of volume calculation was geo-referenced with the GeoTag option. The total stockpile capacity is given by: 3. require your crew to hold a prism pole and occupy areas of a large pile of material. 4 Ground Control Points in the area of the project were surveyed by RTK GPS. The conical stockpile is the simplest and easiest to analyze.
Why use photogrammetry for stockpile volume measurements? High-resolution images give you more details of the mapped stockpiles Measuring a 3d stockpile volume Calculation using 3D Laser Scanning. These top mining companies claim that by applying the photogrammetry workflow with Pix4Dmapper, they can achieve measurement accuracies of around 2-5% for their stockpile volumes. The sample should weigh a minimum of 500 grams.
Area of a stockpile calculator software#
Of the biggest 40 mining companies announced in PWC’s mining report, nearly half of them use Pix4Dmapper photogrammetry software for stockpile measurement and volume comparison as part of their mining workflow.Ĭalculating and managing stockpile inventory, that is, finding a solution for accurate volume measurement and easy inventory management, is one of the biggest challenges in the mining industry. The moisture content should be typical of the material being used.
Speed and accuracy: that's the reason why most of the largest mining companies use drones and photogrammetry software in their workflow.
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