Engineering survey covers the precise measurement tasks that protect structures and machinery: monitoring movement and deformation over time, aligning equipment and steelwork to fine tolerance, and verifying that built geometry matches design.
On mines this includes precision alignment of winder beds, hoists and headgear to within millimetres, monitoring of shafts and surface structures for movement, and as-built verification of critical infrastructure. Repeat-survey monitoring detects small movements early, before they become safety or production problems.
The work uses precise total stations, levels, GNSS and laser scanning, with rigorous control and computation — and, where independent assurance is needed, ties into the company's check-survey and audit capability.
Precision engineering work requires control established specifically for the tolerance being worked to. General site control is frequently not adequate, and using it without checking is a common source of error.
Monitoring requires stable reference stations outside the zone of suspected movement, observed repeatedly under comparable conditions. It detects change between observations — it cannot detect movement that occurred before the first epoch.
Accuracy is a property of a method and a check, not of an instrument. Tolerances are confirmed as achievable on the specific site before work is agreed.
