The Ogorzelec Mine

To control the amount of collected materials we perform measurements using low-altitude photogrammetric technique with the use of an unmanned aerial vehicle (UAV). As a result of post-processing calculations, we obtain a dense point cloud of the area over which the mission was carried out. In this way, we have geometric information about material piles even in hard-to-reach places.

Volumetric measurements in mining are regulated by the Regulation of the Minister of the Environment of October 28, 2015 on mine-surveying and geological documentation:

The relative error in measuring the volume of caprock dumps and output stockpiles cannot exceed:

1) up to 20 thousand m3 - 4% of volume;

2) over 20 to 50 thousand m3 - 3% of volume;

3) over 50 to 200 thousand m3 - 2% of volume;

4) over 200 thousand m3 - 1% of volume.

The measurement and calculation method we have developed fully meets the above conditions.

 On orthophotomaps fitted into national coordinate system we can draw:

- boundaries of the mining area,

- range of mining operations,

- safety pillars,

- boundaries of the planned caprock dumps and output stockpiles.

Our maps or orthophotomaps allow opencast mine employees to:

- analysis of work progress at intervals,

- control of mining operations,

- conscious planning of mining works.