北京地铁暗挖施工技术的灰色聚类评估分析

为使在建地铁暗挖施工技术对后续地铁暗挖施工有一定的指导借鉴作用 ,本文提出了用灰色聚类评估法评价在建地铁暗挖施工技术。此方法通过对在建地铁暗挖施工技术深入调研 ,建立了相关指标体系并使之定量化 ,采用灰色聚类评估方法构造出相应的评价模型 ,计算结果中的三个不同灰类的白化权函数值可确定各项暗挖施工技术的合理性程度 ,根据综合聚类系数可以判断某标段暗挖施工技术的整体水平。通过实际项目的应用 ,证明了采用灰色聚类评估法分析暗挖施工技术既实用又有效 ,既能使后续地铁暗挖施工技术扬长避短又能客观评价其个体与综合水平。

A GRAY CLUSTER EVALUATION ANALYSIS OF TUNNELING CONSTRUCTION TECHNOLOGY FOR BEIJING SUBWAY

In order to instruct the next subway construction, a gray cluster evaluation of subway tunneling construction technology has been put forward. By substantive surveys for subway tunneling construction technology, the correlative index system was built and quantified, and the evaluation model was built up by the gray cluster evaluation method. Three values of Whitenization weight function for different gray kinds in calculating results can describe the rationality for the tunneling construction technology, and according to the synthetic cluster coefficient the whole level of tunneling construction technology for some sections can be evaluated. The evaluation method has been put into practice and proved to be practical and effective, which can not only avoid its weaknesses while exploiting its strengths for the next subway construction, but can also evaluate both its individual and whole levels objectively.