基于层次分析法-模糊综合评价法的盾构掘进适应性评价

Adaptability Evaluation of Shield Tunneling Based on Analytic Hierarchy Process and Fuzzy Synthetic Evaluation Method

盾构掘进适应性评价受多种因素影响,具有不确定性,现有研究方法难以对其进行准确定量分析。为对盾构掘进适应性进行定量评价,现联合运用层次分析(analytic hierarchy process,AHP)法和模糊综合评价法,建立盾构掘进适应性评价模型。根据工程条件,确定盾构掘进适应性评价体系,利用AHP法确定各指标权重,并利用模糊集法确定隶属函数,采用模糊综合评价法对盾构掘进适应性进行评价。以深圳地铁12号线某标段为例,对盾构掘进适应性进行了评价,评价结果表明:盾构掘进适应性为“适应”。盾构掘进适应性评价模型的建立可为类似工程提供一定借鉴指导作用。

Affected by many factors,the adaptability evaluation of shield tunneling is random and fuzzy,and current methods can’t offer an accurate quantitative analysis.The analytic hierarchy process(AHP)and fuzzy synthetic evaluation method were combined to establish an evaluation model of shield tunneling adaptability.According to the engineering conditions,the shield tunneling adaptability evaluation system was determined.The AHP was used to determine the weight of each stage factor,and the fuzzy set theory was used to determine membership function.The adaptability of shield tunneling was evaluated by fuzzy synthetic evaluation method.Taking a shield tunnel section of Shenzhen Metro Line 12 as an example,the adaptability of shield tunneling was evaluated.The results show that the adaptability of shield tunneling is“adaptive”.The establishment of shield tunneling adaptability evaluation model can provide certain reference and guidance for similar projects.