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中国有色金属工业总公司科技部,于1984年11月底组织有关单位,在大冶有色公司铜录山矿鉴定通过了北京矿冶研究总院、铜录山矿共同研究的长锚索和开缝式摩擦锚管联合护顶工艺。该工艺是在矿岩中按一定网度布置钢丝
Ministry of Science and Technology of China Nonferrous Metals Industry Corporation, organized by the end of November 1984 the relevant units in Daye nonferrous copper Tongshan Mine identified through the Beijing Mining and Metallurgy Research Institute, Tongluoshan jointly study the long anchor and slit Friction anchor pipe joint protection technology. The process is arranged in a certain degree of network in the ore rock wire