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.

以柱为代表崩落矿法中,割拉至关重要,而目前柱矿大多用垂直割天井与割平巷并配以中深孔联合拉割方法,但该方法在对矿体上盘回过程中损失贫化较大。