一、组合采矿法的产生和实质 众所周知,我国现行地下采矿法按对采场地压管理方法分为空场、崩落及充填法三大类。空场法借助矿柱支撑采空区,空场只是一种过渡形式,其最终不是人为或自行崩落围岩,就是人工充填空区。空场法具有回采工艺简单、矿房内矿石贫损低、以及采矿效率高等优点。其缺点是要留下占矿块储量50％左右的顶底柱和间柱,这些矿柱要进行第二步回采,并处理空场,这就大大增加了矿损和回采的复杂性。 在长期的生产实践中,采矿工作者逐渐把空场法留矿柱支撑围岩形成空场的原理,运用到某 First, the combination of the mining law and the substance It is well known that the current underground mining law in our country according to the ground pressure management methods are divided into empty space, caving and filling the three categories. Open-field method to support the mined-out area by pillars, the empty field is only a transitional form, the final is not artificially or by themselves bury the surrounding rock, artificial fill empty area. Open field method has the advantages of simple mining technology, low depletion of ore in the mine and high mining efficiency. The disadvantage is to leave about 50% of the ore block reserves of top and bottom pillars and columns, these pillars to be carried out the second step, and deal with airspace, which greatly increased the complexity of mining loss and recovery. In the long-term production practice, the mining workers gradually put the empty field method to support the surrounding rock pillar to form an empty field principle, the use of a