基于大型涵洞安全评估研究

Study on Safety Evaluation Based on Large Culvert

本文在详细分析了大型涵洞安全形态因素不确定性和模糊性特征的基础上,对熵权法和层次分析法的组合权重利用博弈论进行计算,对评估指标、研究对象和量值依据物元概念联为一体并构建了涵洞安全评估模糊可拓模型,然后以辽宁省大连市普兰店区碧流河流域一座穿堤箱涵为例,运用该评估模型进行安全等级评价。结果表明:基于博弈论的模糊可拓模型能较好地反映涵洞安全实际状况,对涵洞安全性态可利用该模型进行动态性和定量化评估,在水工建筑物的安全评估中该模型具有较强的适用性与可靠性,具有一定的推广使用价值。

The combination weight of entropy weight method and analytic hierarchy process is calculated with game theory in the paper on the basis of analyzing uncertainty and fuzziness characteristics of large eulvert safety factors in details. Evaluation indicators, research objects and value are combined on the basis of matter-element concept, and culvert safety evaluation fuzzy extentics model is construe, ted. Then, a dike-crossing box culvetr in Lia（ming Dalian Pulandian District Biliu River Basin is adopted as an example, the evaluation model is utilized for safety grade evaluation. The results show that fuzzy extentics model based on game themT can better reflect the actual situation of the culvert safety, the culvert safety can be dynanfically and quantitatively evaluated with the model. The model has strong applicability and reliability in safety evaluation of hydraulic structures. It has certain use value.