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Writer's pictureStefan Niculescu

Drone Data Delivers: How to Accurately Calculate Stockpiles and Cut/Fill Volumes

Updated: May 2, 2023

Drone technology is quickly transforming how we collect and analyse data in the present day. One of the areas where drones are having a significant impact is in the field of stockpile and cut and fill volume calculations. With the help of drone data, it has become easier and more efficient to accurately calculate stockpile volumes and cut and fill volumes.


In this article, we will discuss the basics of how to calculate stockpile and cut and fill volumes with drone data. We'll go over the advantages of utilising drones for this kind of work as well as some of the most often used software programmes to analyse drone data.

By the time you're done reading this article, you'll know more about how using drone data might help your cut and fill and stockpile volume calculations.



drone on construction site
drone on construction site


How to Calculate Drone Stockpiles Volumes


Calculating stockpile volumes are very important for many industries, including mining, construction, and agriculture. Accurately determining the amount of material in a stockpile is essential for efficient inventory management, cost estimation, and project planning. Usually, this task involved for a surveyor to take manual measurements, which are both time consuming and can cause some safety concerns. However, with the advancements in drone technology and photogrammetry software, calculating stockpile volumes has become much more efficient and accurate.


drone stockpile volume calculation
Stockpile Volume Calculation

In this article, we will explore how to calculate stockpile volumes with drone data. We will discuss the benefits of using drone technology for stockpile volume calculations, the required equipment, and the step by step process involved in data collection, processing, and analysis. We will also cover the different software options available for analysing the data and generating accurate stockpile volume estimates.


How to Calculate Cut/Fill Volumes


Calculating cut and fill volumes is another important aspect of using drone data in surveying and construction projects. Cut and fill volumes refer to the amount of material that needs to be removed (cut) or added (fill) to a site to achieve a desired elevation from the construction design. This is often necessary when preparing a site for construction or when making changes to the terrain for landscaping or environmental purposes.


To calculate cut and fill volumes with drone data, the first step is to create first a digital surface model (DSM) and after a digital terrain model (DTM) of the site. The DTM represents the bare earth surface, while the DSM includes all surface features such as buildings, trees, and other structures. The difference between the two models represents the height of the surface features, which can be used to calculate the cut and fill volumes.


Drone DSM
Example of DSM where is can see the machines features

There are a few different methods for calculating cut and fill volumes with drone data. One common approach is to use software that can automatically compare the DTM and DSM and generate a cut and fill report. This report will normally include a breakdown of the cut and fill volumes for various site regions as well as a 3D visualisation of the site that illustrates the cut and fill areas.


Overall, calculating cut and fill volumes with drone data can be a much faster and more accurate process than traditional surveying methods. It can also provide an extensive representation of the the site, which may assist in project planning and decision making.


Cut and Fill Map with Height Bands
Example of Cut and Fill Map with Height Bands

Using Software for Calculations


Using software for calculations is one of the most efficient ways to calculate stockpile volumes and cut/fill volumes from drone data. The software can take raw data from drone flights and process it into a format that is easily readable and usable.


There are several software options available for calculating stockpile and cut/fill volumes, including Pix4D, DroneDeploy, Agisoft Metashape, and more. These software options can handle large amounts of data and create accurate models that are useful for surveyors, engineers, and construction professionals.


Once the data has been processed, users can select specific areas of interest and generate detailed volume calculations. The software can also generate 3D models and maps, providing a visual representation of the site and the volumes calculated.


Using software for calculations not only saves time, but it also ensures accuracy in the calculations. The software also provides detailed reports that can be used for further analysis or documentation.


Best Practices for Accurate Measurements


When it comes to calculating stockpile and cut/fill volumes with drone data, accurate measurements are crucial. Inaccurate measurements can lead to costly mistakes and delays in project timelines.

Here are some top recommendations for getting precise measurements:


Use quality equipment: It's crucial that you use quality drone equipment and cameras to obtain precise measurements.

A high resolution camera on the drone should be able to take crisp, detailed images of the site.


Plan your flights carefully: Before conducting a drone survey, plan your flights carefully to ensure that you cover the entire site and capture all necessary data. Be sure to consider any obstructions, such as trees or structures, that can disrupt the drone's flight path.


Use ground control points: Ground control points (GCPs) are real markers placed at some particular locations on the ground that can be used to improve the accuracy of drone survey. GCPs can be used to correct for any errors in the drone's positioning data, resulting in more accurate measurements.


Take multiple measurements: To ensure the accuracy of your measurements, it is important to take as many photos and you can of each surveyed area. This can help identify any discrepancies or errors in the data.


Use reliable software: There are many software programs available for calculating stockpile and cut/fill volumes with drone data. To guarantee the accuracy of your computations, select a dependable and precise software programme.


Following these recommendations will ensure that your measurements are accurate and reliable, which will lead to excellent project results..


Real World Examples


To illustrate the practical applications of calculating stockpile and cut/fill volumes with drone data, here are a few real world examples:


Construction Site Earthworks:

A construction company used drone data to monitor their earthworks operations on a building site. The data was used to calculate the volume of materials removed during excavation and compare it with the volume of materials required for backfilling. This enabled the company to optimize their resources, reduce material waste, and minimize their environmental impact.


Construction Site Drone Survey
Construction Site Drone Survey

Mining Operations:

In mining, stockpile volumes are essential to determine the quantity of mineral ores or waste materials extracted. Drone data can provide accurate measurements of stockpiles, enabling mining companies to estimate the value of their resources and plan their extraction processes efficiently.


Landfill Management:

Landfills require constant monitoring to ensure they are filled to the proper height and comply with environmental regulations. Using drone data, landfill managers can calculate the volume of waste deposited in specific areas, estimate the remaining capacity of the landfill, and plan for future expansions or closures.


Agriculture:

Farmers can use drone data to calculate the volume of soil needed to level fields and calculate the amount of fertilizer required for crops. This helps farmers optimize their use of resources and increase crop yields.


Civil Engineering:

Civil engineers can use drone data to calculate the cut and fill volumes for road construction, slope stabilization, and drainage projects. Accurate volume calculations help engineers design and plan projects more efficiently, reducing construction costs and improving project timelines.


These examples demonstrate how drone data can be used to calculate stockpile and cut/fill volumes in a wide range of industries, resulting in improved efficiency, reduced costs, and better decision making.


Conclusion


Construction Site Drone Survey
Construction Site Drone Survey

In conclusion, using drone data for calculating stockpile volumes and cut/fill volumes can save time and money while also providing more accurate results than traditional methods. By following best practices and utilizing the right software, surveyors and construction professionals can ensure precise measurements and avoid costly errors. The successful use of drone technology in these kinds of applications has been demonstrated in practical scenarios, and as the industry continues to adopt technological advances, we are expecting further progress in the surveying and construction fields. So, don't hesitate to incorporate drone data into your next project for efficient and accurate calculations of stockpile and cut/fill volumes.


If you're interested in learning more about drone mapping or volume calculation or if need professional site engineering services for your projects, contact Stefan Niculescu at stefan@stefanengineering.co.uk or 03330906842.





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