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阶段自然崩落法是一种生产能力大、效率高、成本低、作业较安全的采矿方法。近年来,美国、加拿大、智利、菲律宾等国家的一些矿山,应用该法取得了较明显的效益。我国六十年代初曾先后在易门矿务局三家厂铜矿及莱芜铁矿等矿山进行了试验。因当时技术经济条件的限制,加上经验不足,使得试验未成功。目前,我国个别矿山正在进行工业试验,以期推广应用该采矿法。
Phase of the natural caving method is a production capacity, high efficiency, low cost, safer mining operations. In recent years, some mines in the United States, Canada, Chile, the Philippines and other countries have achieved obvious benefits by applying this method. At the beginning of the sixties of last century, we successively conducted experiments in the mines of Sanjiaochang Copper Mine and Laiwu Iron Mine of the Yimen Mining Administration. Due to the technical and economic conditions of the time constraints, coupled with lack of experience, making the trial unsuccessful. At present, China’s individual mines are undergoing industrial tests with a view to promoting the application of the mining law.