Evolution and dip effect of boundary spatial morphology of top-coal limit equilibrium zone in steeply dipping coal seam.

Sci Rep · 2026 · PMC13079729 · PMID 41786965

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a decreasing trendno p-value reported

The minimum principal stress exhibits a decreasing trend along the dip direction, with values following the order: the lower part > the lower‐middle part > the upper‐middle part > the upper part.

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