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在分析各项影响因素分级标准的基础上,建立了三维土工网护坡侵蚀稳定性的综合评价体系.针对三维土工网边坡侵蚀稳定性分析中不确定性问题,将云模型理论引入到综合评判中,实现了定性与定量的不确定性转换.通过构建前件云发生器和后件云发生器,利用不确定推理,确定各项评价指标的具体分值.借助层次分析法与敏感度分析确定各项评价指标的权重,进而得出综合评价体系的整体得分.工程实例计算结果证实了模型的实用性和有效性,为三维土工网防护边坡侵蚀稳定性的评价提供了一条新的途径.
Based on the analysis of the grading criteria of various influencing factors, a comprehensive evaluation system of erosion stability of slope protection in three-dimensional geotechnical engineering is established.According to the uncertainty in the analysis of erosion stability of slope in three-dimensional geotechnical engineering, the cloud model theory is introduced into comprehensive evaluation , The qualitative and quantitative uncertainty transformation is realized.Using indeterminate reasoning, the specific score of each evaluation index is determined by constructing the pre-event cloud generator and the post-event cloud generator.Using analytic hierarchy process and sensitivity analysis Determine the weight of each evaluation index, and then get the overall score of the comprehensive evaluation system.The engineering example calculation results confirm the practicability and validity of the model, which provides a new way for evaluating the erosion stability of three-dimensional geogrids .