1. The main research contents are as follows:(1) According to the systematical summings-up of the method for disposing abandoned stope and theoretical analysis, the unit method of roof cutting and ore pillar dilapidation is presented in this paper.
主要研究工作和结论如下：(1)根据综述和理论分析，提出了切顶与矿柱崩落法，该方法的要点是：利用天然断层等大型弱面或爆破切断顶板，并崩倒悬臂极限跨度内的矿柱，或者直接崩倒顶板极限跨度内的矿柱，使顶板自然冒落。