Queensland Science Network’s Post

#subsidence in #csg #voids in #surat #basin #queensland has been recogised but "make-good" reparations for farmers hare not recognised. A novel methodology for assessing the potential for formation bridging in coal seam gas fields: a case study from southern Queensland In mining, bridging may involve multiple layers that collectively affect the transmission of subsurface deformation to the surface. It does not necessarily include the layer(s) immediately adjacent to the excavated volume as they fall apart on their own (due to weakness) or as part of the adopted ground control approach (Bétournay, 2011). The critical dimensions of the created void for the onset of caving-in depend on the strength and structure of bridging formations, the mining method employed (such as longwall or bord and pillar) and the mining depth. https://lnkd.in/gXNeASzQ

A novel methodology for assessing the potential for formation bridging in coal seam gas fields: a case study from southern Queensland

A novel methodology for assessing the potential for formation bridging in coal seam gas fields: a case study from southern Queensland

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