根据自然法则在采矿中使用的崩落法,现在已经取得很大的成功。事实证明:崩落与沉降的现象,乃是矿石采掘後的自然结果。不论矿床的深度如何,只要在一定范围矿床的下部,采出了一部分矿石,矿床本身即失去支持;如果采掘的面积较大,且对于采掘后的空洞,不采取支持的方法,则该处地盘势必发生崩落和沉降。地盘一旦发生沉降,则矿石由于自然与崩落作用而破碎,所以比不借助于自然力而采 The caving method used in mining according to the laws of nature has now achieved great success. Facts have proved that the phenomenon of avalanches and subsidence is the natural result after ore mining. Regardless of the depth of the deposit, as long as a portion of the ore is mined in the lower part of a certain range of deposit, the deposit itself loses its support. If the area for extraction is large and no supportive measures are taken for the post-extraction hole, It is bound to collapse and settlement. Once the settlement of the site, the ore due to the role of natural and collapse broken, so than without the use of natural resources mining