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结合煤巷中常用的树脂端锚式金属锚杆使用特点，对其回收方法进行了分析，提出了“扩孔剥离回收方式”，并对回收用的钻具结构和尺寸进行了设计。
Combined with the commonly used characteristics of end-anchored metal anchor bolt used in coal roadway, the recovery method was analyzed, and the “reaming and reaming method” was proposed. The structure and size of recovery drill were designed.