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介绍了新峰一矿“三软”不稳定厚煤层π型梁和摩擦式金属支柱支护放顶煤工作面矿压观测结果,并对其显现规律进行了分析。
This paper introduces the observation results of the rock pressure of the π-beam and the frictional metal pillar supporting caving face in the “three soft” unstable thick seam in Xinfeng No.1 Mine and analyzes its appearance.