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.

以无底表的崩落采法中,切割拉槽至关重要,而目前无底采大多采用垂直切割天与切割巷并配以中深孔联合拉槽的切割方法,但该方法对体上盘回采过程中损失贫化较大。

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.

建设工程设计方面，远月点国际有限公司提供竖、斜、风、溜、巷、隧道及各种地下硐室的设计。