地铁基坑支护方案的模糊评价

Fuzzy Evaluation of Supporting Structure in Metro

摘要:

根据地铁深基坑支护工程的特点，建立支护方案的指标体系，运用层次分析法确定了指标的权重，采用模糊数学的方法，构造了单极模糊评价模型，将指标因素的不确定性进行定量化。实例分析表明，模糊综合评价进行深基坑支护方案优选的方法是可行的、有效的。

关键词:地铁基坑;支护;权重;模糊综合评判

Abstract:

Based on characteristics of supporting work for deep excavation in metro, an index system for supporting version was established. The weighting of index was set up with hierarchy analysis. A single level fuzzy evaluation model was formed with fuzzy mathematical method. The uncertainty of the index factors was quantified. A case study showed that fuzzy comprehensive evaluation method was reasonable and effective, and can be referred to practical engineering.

Key words:metro excavation; supporting; weighting; fuzzy comprehensive decision