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通过对岩溶隧道突水机理的研究以及百余例岩溶隧道突水实例资料的分析,遴选出了岩溶隧道突水灾害发生的主要影响因素并建立评价指标体系,基于简单关联函数理论确定各评价指标的权值,结合加权平均法构建岩溶隧道突水模型,成功构建多因素-单一综合评价指标计算模型对隧道突水进行危险性评估。该方法将定性因素与定量因素、经验判断与定量方法有机融合,是一种多目标决策分析方法。最后通过对3个工程实例的突水危险性评价,得出其评价结果与现场开挖和文献评价结果一致,证明了此方法的有效性与可行性。
Through the research on the mechanism of water inrush in karst tunnels and the analysis of data of a hundred cases of water inrush from tunnels, the main influencing factors of water inrush disaster in karst tunnels are selected and the evaluation index system is established. Based on the simple correlation function theory, the evaluation indexes , And combined with the weighted average method to construct a water inrush model for karst tunnels. The multi-factor-single comprehensive evaluation index calculation model is successfully constructed to evaluate the risk of water inrush from tunnels. The method of qualitative factors and quantitative factors, empirical judgments and quantitative methods of organic integration is a multi-objective decision analysis method. Finally, the water inrush risk assessment of three engineering examples shows that the evaluation results are consistent with the results of field excavation and literature evaluation, which proves the effectiveness and feasibility of this method.