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介绍了模糊最优归类理论,并建立了围岩最优归类模型。在此模型基础上,对单轴抗压强度、节理条件、岩石质量指标、节理间距、地下水条件等围岩稳定性的影响因素进行指标权重优化。通过影响因素的权重优化,分析了失稳巷道围岩质量等级,并将结果与RMR法的分类结果进行比较,得出最优化模型,为后期的治理工作提供依据。
The fuzzy optimal classification theory is introduced and the optimal classification model of surrounding rock is established. Based on this model, the influencing factors of surrounding rock stability, such as uniaxial compressive strength, joint conditions, rock quality indexes, joint spacing and groundwater conditions, are optimized with index weights. Through the weight optimization of influencing factors, the grade of surrounding rock mass in unstable roadway is analyzed, and the result is compared with the classification results of RMR method. The optimal model is obtained, which can provide the basis for the later management.