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针对评价大坝渗流性态一直为工程决策的难点问题,以某混凝土重力坝#2坝段为例,构建了大坝渗流指标结构体系,选定了渗流评价标准和监控指标,利用可拓理论将定性与定量分析有机结合,并结合模糊数学理论构造了渗流性态评价中的模糊物元,引入熵权法确定指标体系的权重系数,建立了基于熵权的模糊可拓评价模型。结果表明,该坝段渗流性态正常,评价结果合理,符合实际情况。
In order to evaluate the seepage behavior of a dam, which has been the difficult point of engineering decision-making, taking dam # 2 of a concrete gravity dam as an example, the structural system of seepage of dam is constructed. The evaluation criteria and monitoring indexes of seepage are selected. The qualitative and quantitative analysis is combined organically. The fuzzy matter element in seepage flow state evaluation is constructed by combining with fuzzy mathematics theory. The entropy weight method is adopted to determine the weight coefficient of index system, and the fuzzy extension evaluation model based on entropy weight is established. The results show that the seepage behavior of the dam section is normal, the evaluation results are reasonable and in line with the actual situation.