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Zones of the rock stratum above the goaf space of the coal mining face
Release time:
2022-12-22
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Zones of the rock stratum above the goaf space of the coal mining face
Zones of the strata above the mined-out space
After all the caving method is used to treat the goaf, the roof rock above the goaf will inevitably caving, stacking, crushing and filling the goaf, which will play a certain supporting role for the rock layer above. Because the filling and compacture degree of filling are quite different and insufficient compared with the original coal seam, the rock stratum above the goaf space will generally move, forming caving zone, fissure zone and bending subsidence zone from bottom to top.
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