Mine surveying equipment and tools
Mine surveying equipment and tools play an essential role in modern geological and mine surveying work. These technologies and devices allow for precise measurements, the creation of mine surveying networks, the acquisition of geodetic data, and calculations of mineral volumes.
Theodolites and levels
One of the most common classical instruments in geodesy and mine surveying is the theodolite. A theodolite is a mine surveying device that consists of an optical telescope with a crosshair and vertical and horizontal circles. By using a theodolite, a surveyor can measure horizontal and vertical angles between points in the terrain, enabling the establishment of points on the ground with high accuracy.
Other important surveying instrument is a level. A level is a mine surveying equipment used to measure the height differences between different points on the terrain. With this instrument, a surveyor can establish an accurate level of elevation, which is necessary for the design of buildings, waterfalls, tunnels, and other structures.
In addition, surveying equipment includes devices such as distance meters, spring levels, tilt sensors, and others. All these instruments assist surveyors in collecting, analyzing, and interpreting information, which is a crucial step in the work of any mining professional.
Total stations
A total station is a surveying instrument that combines the functions of a theodolite and a distance meter. The main advantage of total stations is their ability to simultaneously measure angles and distances to objects, significantly speeding up the process of surveying measurements. These devices are typically equipped with laser distance meters and can measure distances to objects by reflecting a laser beam.
Total stations can be optical or electronic. Optical total stations are used for direct measurements through an eyepiece, while electronic total stations have digital displays that show the measured values. Electronic total stations can also be connected to computers or tablets for direct data transmission and automatic input into software.
Using total stations, surveyors can determine the coordinates of points, measure horizontal and vertical angles, distances, and heights in real-time, making them indispensable for precise and efficient surveying tasks such as creating topographic maps, establishing control points, measuring terrain profiles, and more. This data is used for calculating mineral volumes, creating topographic plans, calculating displacements and deformations, as well as constructing a planned surveying reference network in accordance with (GKNTA‑2.04–02-98) and the Order of Construction of the State Geodetic Network, approved by the Resolution of the Cabinet of Ministers of Ukraine on August 7, 2013, No. 646.
Additionally, modern total stations can have additional features that facilitate the work of surveyors. For example, some models can automatically detect and track targets, simplifying the measurement process and ensuring greater accuracy of results. Some total stations can also be used in combination with GPS receivers to obtain even more precise results.
Drones
The use of drones as surveying equipment is becoming increasingly popular and is significantly changing the ways data is collected in mining operations. Drones equipped with high-quality cameras and sensors provide surveyors with a significant advantage, allowing them to quickly gather detailed information and create accurate mapping models. Instead of traditional manual measurements, surveyors can use drones for automatic terrain scanning. This takes less time and effort, increasing productivity and reducing costs.
Drones can reach inaccessible or hazardous areas, providing surveyors with the ability to explore challenging mountainous terrains or other hard-to-reach locations. They can provide detailed information about geological structures, surface slopes, and other important parameters without exposing surveyors to risks associated with working in dangerous places. An additional advantage of using drones is the real-time transmission of collected data to the command center. This allows surveyors to quickly analyze information and make timely decisions. The use of drones in surveying helps reduce the time and effort spent on data collection and processing, enhancing work efficiency.
Furthermore, drones can replace surveying equipment used for periodic monitoring of land surface conditions. They can easily replicate field surveys, providing accurate data on changes that have occurred over a specific period of time. This enables surveyors to detect ground displacements, deformations, and other changes that may impact safety in mining sites. With high-quality cameras, drones can capture detailed surface images, creating three-dimensional models that assist surveyors in mine development planning, identifying potential risks, and improving extraction processes.
Global Navigation Satellite Systems (GNSS)
With the development of modern geodetic technologies, new surveying equipment has emerged, such as Global Navigation Satellite Systems (GNSS). GNSS devices, such as GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), or Galileo, utilize satellite signals to determine the precise location of points on the Earth’s surface. They enable surveyors to obtain coordinates of points with high accuracy and speed, simplifying the measurement process and facilitating more efficient work over large areas.
GPS is the most widely used and well-known GNSS technology. GPS devices have built-in receivers that receive signals from GPS satellites and process them to determine geographic coordinates — latitude, longitude, and altitude. To obtain accurate results, GPS receivers need to have sufficient visibility of a certain number of satellites, typically a minimum of 4, to perform trilateration and determine the precise location.
One of the advantages of GPS is its global coverage. Since GPS satellites are positioned at high altitudes and orbit around the Earth, receivers can receive signals practically anywhere on the planet. GPS allows for the establishment of large-scale surveying networks and can be used to determine parameters of the Earth’s surface, measure angular and linear quantities, analyze deformations, and study geological phenomena.
Software
Modern surveying equipment also includes specialized software packages for processing and analyzing geodetic data. These programs enable calculations of coordinates, construction of digital terrain models, creation and analysis of geodetic networks, and much more. They streamline the work of surveyors by providing fast and accurate processing of large volumes of geodetic data.
One key area of development is the transition to wireless technologies, which ensure continuous communication between surveying instruments and computers. This allows surveyors to work more mobile and efficiently over different distances, while also simplifying the data collection and processing process.
Currently, the functions that can be translated into software in surveying include:
Measurement of terrain profiles, object positioning, creation of accurate maps, etc.
Creation of geodetic maps, including 2D and 3D models.
Performing various analyses and measurements, such as distance determination, area calculations, height measurements, and other geodetic parameters.
Integration with other systems, such as navigation systems or accounting systems, enabling process automation.
Overall, modern surveying equipment allows for measurements with high speed, accuracy, and efficiency, which is crucial for resource exploitation, design, construction, land management, and other fields. Modern surveying equipment and tools are becoming more compact and portable. For example, modern electronic theodolites have small sizes and lightweight, making them easier to transport and use on-site. This allows surveyors to be more mobile and reduces the time required for measurements.