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选取巷道宽度、高度、埋深、侧压系数和围岩综合强度5个因素,采用正交数值模拟试验方法,研究了以上5个因素对巷道稳定性的影响。试验结果表明:5个因素对巷道稳定性均有影响,但影响程度不同,其影响主次依次为:埋深>围岩综合强度>侧压系数>巷道宽度>巷道高度。该试验结果与相似材料模拟试验结果基本吻合,表明该方法是研究巷道稳定性的一种行之有效的方法。
Five factors of roadway width, height, depth, lateral pressure coefficient and comprehensive strength of surrounding rock are selected. By orthogonal numerical simulation test method, the influence of the above five factors on roadway stability is studied. The test results show that: five factors have an impact on the stability of the roadway, but the degree of influence is different. The order of influence is: depth of embankment> comprehensive strength of surrounding rock> lateral pressure coefficient> width of roadway> height of roadway. The test results are basically consistent with the simulation results of similar materials, indicating that the method is an effective method to study the stability of roadway.