3.5.2 Kestrel LW Face Fall 300panels IMG 0026SCT has developed the field capability to study and monitor overburden caving behaviour above longwall panels. This capability complements and informs a range of control strategies using hydraulic fracturing that have also been developed.

Stress change monitoring, surface extensometer monitoring and inclinometer monitoring are used to determine the progress of cave development often where there is a massive strata unit that disrupts normal caving behaviour. Remotely controlled borehole cameras and high resolution subsidence monitoring are also used to develop an understanding of caving behaviour and the interaction that occurs with groundwater systems.

SCT has the tools to investigate, understand and solve caving issues related to windblast, periodic weighting and longwall support weighting issues as well as a track record of achieving successful outcomes for our clients.

For more information on overburden caving, please contact Dr Ken Mills.

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