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.

以底柱为代表崩落矿法中,拉槽至关重要,而目前底柱矿大多用垂直天井与平巷并配以中深孔联合拉槽方法,但该方法在对矿体上盘回过程中损失贫化较大。