地铁车辆段灰绿耦合雨水系统综合评价体系及应用

针对灰色措施生态价值低和绿色措施经济成本高的弊端，综合考虑环境、经济、工程以及社会等因素，以径流量削减率、洪峰削减率、施工难度、雨水资源利用、施工成本等作为评价指标，采用层次分析法和熵权法确定组合指标权重，基于云模型构建针对地铁车辆段特点的灰绿耦合雨水系统评价体系，并在西安地铁鱼化寨车辆段进行应用实践。研究结果表明，车辆段内灰绿耦合雨水系统方案性能总体优于单独灰色措施和单独绿色措施方案。本文构建的指标以及评价方法可以为后续地铁车辆基地灰绿雨水系统设计运行阶段评价提供参考。

Comprehensive Benefits Evaluation and Application of Coupled Gray-greenInfrastructure System on Metro Depots

In view of the disadvantages of the low ecological value of gray measures and the high economic cost of greenmeasures, this study proposes a gray-green coupled rainwater system evaluation system for metro depots, comprehensivelyconsidering environmental, economic, engineering, and social factors. The runoff reduction rate, flood peak reduction rate,construction difficulty, rainwater resource utilization, and construction costs were considered as evaluation indicators.Analytic hierarchy process (AHP) and entropy weight methods were adopted to determine the index weights, and a benefitevaluation system was constructed based on the cloud model. The results show that, with the proposed evaluation system, theperformance of gray-green coupled scheme in the metro depot is better than that of single gray and single green measureschemes. The evaluation index and method of this study may serve as a reference for the evaluation of gray-green rainwatersystem design and operation stage of metro depots.