城市地下空间模糊综合评价方法研究

随着城市社会的不断发展,越来越多的设施向地下空间发展,建立有效的地下空间安全评价方法,能在一定程度上为地下空间的正常运行提供支撑。笔者对北京市五类地下空间进行实际调研,包括商业零售、文化娱乐、体育健身、旅馆、餐饮等地下场所及地下车库。从而根据北京地下空间实际情况,首先识别了城市地下空间安全的影响因素;然后,结合专家意见,构建了安全评价指标体系,并运用层次分析法确定了指标体系中指标的权重;最后,将模糊数学理论引用到了地下空间的安全评价中,建立了模糊综合评价模型,并通过实例验证了方法的有效性。

Research on the Fuzzy Comprehensive Evaluation Method of Urban Underground Space

With the development of society,more and more infrastructure are built in underground space.So an effective method of safety assessment would provide support to the normal operation of the underground space.This paper investigates five kinds of underground space,including commercial,culture and entertainment,fitness,hotel,dining and garage ones.According to the real situation of underground space in Beijing,firstly,the safety factors are identified.Then,the safety evaluation index system is established with the experts’ opinions,and the index weights are determined using AHP.At last,fuzzy theory is referred for the safety evaluation of underground space and a fuzzy comprehensive evaluation model is built.Finally,the validity of the method is verified by an example.