Mining professionals identify and excavate valuable minerals and resources. Both deep-bore mining (underground) and strip mining (surface) employ different methods to achieve extraction, and these methods require specialized surveying techniques. Both mining types share three notable commonalities:
Understanding the geology and value of mineral deposits.
Claims, for establishing boundaries and for negotiations concerning the owner(s) rights to deposits.
Analyzing data collection to show accurate environmental impacts mining activity has both above and below ground, including any bordering properties.
Surveyors plot boreholes against known and suspected deposit locations, sometimes with a sunshot, a technique to calculate the surveyor longitude and latitude via time and the sun position. Then, additional borings reveal more deposits. Surveyors recalculate the drilling area and the updated plot establishes the boundary.
Typically, surveyors take measurements underground throughout the morning and leave the mine to update data in the evening.
Inaccurate measurements are unacceptable, hazardous, and can cause fatalities in a mine. Zeroing a vertical or horizontal benchmark one centimeter off-center means measurements will be incorrect by feet further down the tunnel. Surveyors update files in their data collectors, and calibrate theodolites and other tools with pinpoint accuracy to avoid mistakes and avert potential disasters.
This shares similarities with geodetic surveying. Elevations, slopes, points and horizontal control are established. All measurements are updated as necessary.
Land Surveys Pty Ltd are building surveyors providing a complete range of construction surveying services in Perth & Karratha, Western Australia.