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采用模糊聚类最大树与ＩＳＯＤＡＴＡ联合分类法对巷道围岩分类方案进行全局优化，通过引入复合指标地压系数，绘制出多参数围岩分类图。用该图判别新巷道围岩类别非常简便，适于工程应用。
The fuzzy clustering maximum tree and ISODATA joint classification method is used to optimize the classification scheme of roadway surrounding rock comprehensively. By introducing the composite index ground pressure coefficient, the multi-parameter surrounding rock classification map is drawn. Use the figure to distinguish the surrounding rock types of new roadway is very simple and suitable for engineering applications.