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Case Studies

Picton

Monitor effects of mining activities on surrounding areas.

Picton

Monitoring subsidence in the surrounding area during mining projects is crucial for ensuring the safety and stability of both human-made structures and natural systems.

In this case, where the effects of longwall mining operations over a large area needed to be determined, InSAR proved a powerful tool for conducting this analysis. By utilising satellite-borne radar systems, InSAR enables continuous and precise monitoring of subsidence over large areas with remarkable accuracy.

Unlike conventional in-situ monitoring, which typically cover limited, discreet points and sections, InSAR provides a comprehensive view of deformation across an expansive region. This capability is particularly valuable in mining projects where subsidence can have far reaching consequences.

The extent and magnitude of mining-induced settlement that coincided with mining operations in different areas were determined by InSAR analysis of a time series of satellite images.

Highlights 

  • Longwall mining-induced settlement over a large area needed to be determined. 

  • InSAR analysis (SBAS) was performed on a time series of satellite images. 

  • The extent and magnitude of subsidence and uplift were determined for a nearby industrial zone, road, and railway line. 

  • The pattern of movement coincided with the mining operations beneath. 

  • We validated against in situ monitoring by different contractor. 

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