Study on Extension Evaluation of Construction Risk of Metro Foundation Pit Based on Measured Data
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摘要: 为了有效评估基坑工程施工风险，本文在构建风险评估指标体系的基础上，采用有序加权算子赋权和物元可拓模型相结合的评价方法，通过计算待评物元与评价等级的关联度和等级特征值，从定量的角度评估基坑工程施工风险等级，提高了风险评估的客观性，实例分析表明将有序加权算子与物元分析方法运用于基坑施工阶段风险评估具有可行性和实用性。Abstract: In order to evaluate the construction risk of foundation pit engineering effectively, this paper adopts the evaluation method which combines the weight of ordered weighted operator and matter element extension model on the basis of constructing the risk evaluation index system, by calculating the correlation degree and the grade characteristic value between the matter element to be evaluated and the evaluation grade, the risk grade of foundation pit construction is evaluated quantitatively, which improves the objectivity of the risk evaluation, the example analysis shows that the application of ordered weighted operator and matter element analysis method to the risk assessment of foundation pit construction stage is feasible and practical.
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Key words:
- measured data /
- foundation pit engineering /
- risk assessment /
- extension assessment
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