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.

无底柱为代表的崩落采矿法中,割拉槽至关重要,而目前无底柱采矿大多采用割天井与割平巷并配中深孔联合拉槽的割法,该法在对矿体上盘回采过程中损失贫化较大。

There's danger from falling rocks.

这里有石块儿崩落的危险。

However, the caving maybe happen because of too large transmogrification and rheologic fracture to high crustal stres.

统一流变断裂准则，最终形成了诱导条件下节理岩体持续大规模自然崩落判据。