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本文从系统理论出发,运用层次分析法(AHP)对影响泥石流危险性的相关因子进行分析,从泥石流的物源条件、地形地貌条件、和诱发因素中选取10个指标作为评价泥石流危险性的评价因子,构建了泥石流危险性评价的层次指标体系,并对各参与评价因子的权重作了计算,建立起泥石流危险性评价模型。最后通过实例验证,评价结果与实际情况有较好的一致性,因此,运用层次分析法进行泥石流危险性评价是实用和有效的。
Based on the system theory, AHP is used to analyze the related factors that affect the risk of debris flow, and 10 indicators are selected from the source, topography and inducing factors of debris flow to evaluate the risk of debris flow Factor, a hierarchical index system for debris flow hazard assessment was constructed, and the weight of each participating evaluation factor was calculated, and a debris flow hazard assessment model was established. Finally, the result of case analysis shows that the evaluation result is in good agreement with the actual situation. Therefore, it is practical and effective to use AHP to assess the risk of debris flow.