Subsidence as a result of mining activities underground is a common occurrence in NSW, particularly Newcastle and the Hunter Region. Mines can have a range of negative impacts on the surface environment, including damage to buildings and infrastructure, as well as potential impacts on human health and safety.
The investigation process typically includes a review of historical mining records and maps, as well as field surveys and geological testing, drilling and core sampling to determine the extent and severity of subsidence, as well as likely future impacts on any current or proposed buildings or infrastructure. Remediation measures are then developed to mitigate these impacts, such as grouting and reinforcing or stabilising buildings.