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.

以无底柱为代落采矿法中,切割拉槽至关重要,而目前无底柱采矿多采用垂直切割天井与切割巷并配以中深孔联合拉槽切割方法,但该方法在对矿体上盘回采过程中损失贫。

In mine construction engineering area, Apolune International Limited provide design of vertical shaft, inclined shaft, ventilating shaft, ore pass, drift, tunnel and all kinds of underground chamber.

在矿井建设工程设计方面，远月点国际有限公司提供竖井、斜井、风井、溜井、巷、隧道及各种地下硐室设计。