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该支柱可在厚度为0.5～1米,倾角35°以下的煤层内作工作面单体支柱或放顶支柱使用。该支柱可在采用全部陷落法或缓慢下沉法管理顶板、并能在回柱的条件下与金属顶梁或木顶梁配套使用。该支柱还可在采用局部充填或全部充填方法管理顶板的条件下使用。
The pillars can be used as single pillars or roof pillars in a coal seam with a thickness of 0.5 to 1 meter and an inclination of 35 degrees or less. The pillars can be used for roof control with full or slow subsidence method and can be used with metal roof beam or wood roof beam under back column conditions. The pillars can also be used under partial or full filling roof management conditions.