If the stockpile you’re working with is less than 50 cubic yards, you can use the iPhone app exclusively to get your measurement, without creating a sample pile.įor more information, contact the Stockpile Reports team at (425) 428-5266. You will want to measure multiple loads and stockpiles to calculate compaction changes as more material is added to the stockpile. A laboratory test is performed to validate the proposed UAV method. (You will use this number as your conversion factor for tons per cubic yard.) This paper aims to analyze the suitability of UAVs in determining the fly ash stockpile volumes. The number you reach in Step 5 is your aggregates stockpile density at a given point in time. Use an iPhone app or drone to determine the sample pile’s cubic yards.ĭivide the tonnage (weight of the three samples) by the cubic yards (volume). Place the three loads in a “conical-shaped” pile away from any other material. While most OEMs offer such weighing options with loaders these days, aftermarket options are available such as those offered by MOBA Corp., Peachtree City, Georgia. Write down the weight of the three sample loads combined. If you have an older model machine with no scale, you can place all three loader bucket loads in a haul truck whose current tare weight you know, and then weigh it at a truck scale when loaded. With this “smart machine” technology, which is now standard on Cat wheel loaders, data is displayed in real time on a screen in the operator’s cab for the purpose of improving your productivity and loading accuracy, but you can, of course, use this technology when calculating your stockpile densities. For example, Cat Payload with Assist from Caterpillar is designed to provide accurate weighing of bucket payloads as you work. Weigh each bucket load with the wheel loader’s onboard loader scales. Have the wheel loader approach the stockpile at a 90-degree angle to the right of the stacker for the third sample.Have the wheel loader approach the stockpile at a 90-degree angle to the left of the stacker for the second sample. Have the wheel loader approach the stockpile in line with the stacker to take the first sample.Achieved Results The project is processed in less than an hour, including dense point cloud with mesh and texture and volume calculation reports. The data includes 173 point s describing the surface of the pile. Take three samples of material with the full capacity of the wheel loader bucket. The area of the stockpile was surveyed by using the conventional method with RTK GPS. For a stockpile that is 50 cubic yards or greater:
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