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大直径深孔采矿法是70年代中期发展起来的一项采矿新工艺和新技术,具有效率高、成本低、作业安全、矿石破碎质量好等突出优点,是地下采矿技术的一大进步。1981年中国有色金属工业总公司向长沙矿山研究院和广东凡口铅锌矿下达了大孔采矿方法的研究任务,长沙矿山研究院对此进行了相应的试验研究工作并完成了可行性研究,随后即被列为国家科委1982～1984年完成的重大科技攻关课题,1985年由国家科委和中国有色金属总公司主持该成果(FDQ 采矿法)鉴定。从此,凡口矿便成为中国采用大孔采
Large-diameter deep-hole mining method is a new mining technology and new technology developed in the mid-1970s. It has the prominent advantages of high efficiency, low cost, safe operation and good quality of ore crushing. It is a great progress of underground mining technology. In 1981, China National Non-Ferrous Metals Industry Corporation issued the research task of macroporous mining method to Changsha Mining Research Institute and Guangdong Fankou lead-zinc mine. Changsha Mining Research Institute carried out the corresponding experimental research and completed the feasibility study, Subsequently, it was listed as a major scientific and technological research project completed by the State Science and Technology Commission from 1982 to 1984, and was appraised by the State Science and Technology Commission and China Nonferrous Metals Corporation in 1985 as the result of the FDQ Mining Law. Since then, where mouth mouth mine has become China adopted a large hole mining