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本文根据徐州大黄山煤矿单体支柱工作面底板比压测定结果，对底板极限比压、刚度和底板抗压入强度降低的主要影响因素进行了分析。认为控制支柱钻底，如支柱穿鞋等是改善底板承压条件的有效途径，在软底工作面中，应注意避免底板积水和炮崩动力破坏。据此对本矿区工作面煤层底板进行了分类。
In this paper, according to the measurement results of the floor specific pressure of the single prop working face in Xuzhou Huangshan coal mine, the main factors affecting the ultimate pressure, stiffness and the compressive strength of the floor are analyzed. It is considered that controlling the bottom of pillar of propping, such as pillar wearing shoes, is an effective way to improve the conditions of bearing pressure on the bottom floor. Based on this, the coal floor of coal mining face has been classified.