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1984年8月28日冶金部主持召开了围岩稳定性分级技术鉴定会,有大专院校、科研单位,生产部门等33个单位的代表参加会议。 会议给予新的分级方法以很高的评价。认定运用“聚类分析”进行围岩稳定性分级,为国内外首创、具有国际先进水平。会议建议这一分级方法今后在勘探、设计、施工和生产等单位积极试用,大力推广,以求获得更大的经济效益。
On August 28, 1984, the Ministry of Metallurgy presided over the Appraisal of Surrounding Rock Stability Classification Technology, with representatives of 33 units including tertiary institutions, scientific research units and production departments attending the meeting. The meeting gave a new rating method with a high rating. Identified using “cluster analysis” for rock stability classification, for the first at home and abroad, with the international advanced level. The meeting suggested that this grading method should actively tryout and actively promote such units as exploration, design, construction and production in the future in order to obtain greater economic benefits.