Influencing Factors for the Instability and Collapse Mode of the Goaf Structure in a Gypsum Mine

<div>Progressive failure mode of a mining unit induced by room failure: (a) cracking and caving of the protective gypsum plate, (b) upward development of the arch structure, and (c) overall failure of the room pillar structure with stable suspension of the key stratum.</div>

Advances in Civil Engineering

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Figure 3

Figure 3: Influencing Factors for the Instability and Collapse Mode of the Goaf Structure in a Gypsum Mine 