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冶金部于1984年8月28日至30日在山东省主持召开了围岩稳定性分级鉴定会。该课题主要是由东北工学院围岩稳定性课题组完成的。该分级法的特点,是在矿山具有代表性的巷道中测得大量数据的基础上,运用聚类分析法编制出的电算程序,由电脑进行计算分析,从而形成了一种新分级法——动态分级法。用这种动态分级法为各个试点矿山建立了稳定性分级,进而提出了冶金矿山巷道围岩稳定性分级系列。与会代表认为,动态分级法运用聚类分析
Ministry of Metallurgy held a classification appraisal meeting of surrounding rock stability in Shandong Province from August 28 to August 30, 1984. The subject is mainly completed by the Stability Group of Surrounding Rock of Northeast Institute of Technology. The classification method is characterized by a large number of measured data in the mine roadway representative, the use of cluster analysis of the computer program compiled by the computer calculation and analysis, resulting in a new classification method - - Dynamic classification. With this dynamic grading method, the stability classification of each pilot mine is established, and then the series of grading stability of the surrounding rock of the mine is put forward. Participants believe that the dynamic classification method using cluster analysis