一、前言当前在坑内开采实践中,用各种组分的充填料支撑采空区和上部岩层的开采方法占有显著地位。这些充填采矿法以单独形式或与各种支护相结合而采用。当采空区不是随回采工作面的推进立即充填,而是在矿房整个高度采完后充填,这种随后充填的矿房矿柱采矿法,应用最为广泛。这种采矿法与其它回采法的主要区别,是在回采过程中具有充填采空区的工艺过程,它对整个采矿法起主要作用。改变采矿方法的面 I. Preface At present, in the practice of pit mining, the mining method of supporting the goaf and the upper strata with various packing materials occupies a prominent position. These fill-mining methods are used alone or in combination with a variety of supports. When the gob area is not immediately filled with the advancing face of the mining face, it is filled after the entire height of the mine is mined. This subsequent mining method of ore pillar mining is the most widely used method. The main difference between this mining method and other recovery methods is the process of filling goafs during the recovery process, which plays a major role in the overall mining law. Change the face of mining methods