倾斜切割天井与中深孔联合拉槽的研究

Study and application of inclined cutting raise heading together with inclined medium or deep hole kerve

以无底柱为代表的崩落采矿法中,切割拉槽至关重要,而目前无底柱采矿大多采用垂直切割天井与切割平巷并配以中深孔联合拉槽的切割方法,但该方法在对矿体上盘回采过程中损失贫化较大。本文对此进行了分析,提出推广应用倾斜切割天井与中深孔的拉槽方法,对资源的利用以及创建节约型矿山具有重要意义。

In pillarless mining, the cutting method of vertically cutting raise heading or cutting tunnel together with medium or deep hole kerve is usually used. Since the method causes serious depletion of ore during mining of upper plate, the inclined cutting raise heading together with inclined medium or deep hole kerve is suggested. Using the new method, mineral resource can be well exploited.