在煤层倾角大、地质条件复杂的情况下，木支护消耗量大、成本高、顶板管理困难、事故多发。为此，草埠矿进行支护改革，首先采用摩擦支柱，继而采用单体液压支柱。为防止大倾角下单位支柱倒滑和炮崩，采取了一系列措施，取得了显著成效。 Under the conditions of large coal seam dip angle and complex geological conditions, the timber support consumes a lot, the cost is high, the roof management is difficult and the accidents occur frequently. To this end, Caopu ore support reform, the first friction friction pillar, followed by single hydraulic props. A series of measures have been taken to prevent unit struts from collapsing and crashing under large angle of inclination with remarkable results.