CLASSIFICATION OF STRUCTURAL STABILITY OF SURROUNDING ROCKS OF ROADWAY AFFECTED BY OVERHEAD MINING AND DECISION MAKING OF SUPPORT PARAMETERS
跨采巷道围岩结构稳定性分类与支护参数决策

In accordance with the characteristics of ground pressure arround roadway that is affected by overhead mining and proceeding, structural stability indexes that reflect the concrete stable conditions of surrounding rocks are set up, the weight of each index is determined by using field measured data as samples. The structural stability classification pattern of roadways affected by overhead mining is obtained by applying ISODATA fuzzy cluster analysis method. Also a practical method of structural stability classification and bolt support parameters design is put forward. It can be used in stability prediction and bolt support design of roadways affected by overhead mining.