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通过实例 ,阐述了三合矿中四采 3#上 右三采面在回采过程中遇顶板破碎时的几种处理方法 ,使主机割煤时破碎带暴露面积为最小 ,达到管理顶板的目的 ,对其它高档普采工作面遇顶板破碎时的处理有借鉴意义
By means of examples, several treatment methods of roof crushing during the mining process of the third mining face of No. 4 mining No. 3 in Sanhe Mine are expounded. The exposed area of the fractured zone is minimized when the host coal is cut, so as to achieve the purpose of roof management. For other high-grade general mining face roof when dealing with the significance of the treatment