【摘要】 针对地下采矿工程岩体质量评价问题，以早子沟金矿3 000 m水平中段岩体为研究背景，运用熵权法确定评价指标的权重，构建了基于熵权法的五元集对分析模型。选取岩石单轴抗压强度、RQD指标、节理间距、节理状态和地下水状况5项指标，对围岩质量进行评价。研究结果表明，巷道闪长玢岩为坚硬-较坚硬侵入岩，其分布地段围岩质量等级为Ⅱ级；板岩属较坚硬-较软弱变质岩，其分布地段质量等级相对要低，多为Ⅲ级；集对分析法评价结果与RMR分类结果具有较好的一致性，且能够直观地反映评价岩体与各等级标准的贴近程度，由此证明该方法用于地下采矿工程岩体质量评价是合理可行的。更多还原

【Abstract】 Aiming at the problem of rock mass quality evaluation of underground mining engineering,taking the rock mass of the 3 000 m level middle section of Zaozigou Gold Mine as the research background,the entropy weight method is used to determine the weight of the evaluation index,and a five-element set pair analysis model based on the entropy weight method is constructed. Five indexes of rock uniaxial compressive strength,RQD index,joint spacing,joint state and groundwater condition are selected to evaluate the quality of surrounding rock. The results show that the diorite porphyrite in roadway is hard-hard intrusive rock,and the quality grade of surrounding rock in its distribution section is Grade Ⅱ. The slate belongs to hard-weak metamorphic rock,and the quality grade of its distribution section is relatively low,mostly Grade Ⅲ. The evaluation results of the set pair analysis method are in good agreement with the RMR classification results,and can intuitively reflect the degree of closeness between the evaluation rock mass and each grade standard. It is proved that the method is reasonable and feasible for the rock mass quality evaluation of underground mining engineering.更多还原