TOPSIS－熵权决策法在绿色施工节水措施综合效益评价中的应用

针对目前施工现场环境条件的多样性,致使选用不同节水措施所产生的综合效益存在很大差异,现采用实地调研及Delphi法最终筛选出19项综合效益评价指标,构建其综合效益评价指标体系,并通过引入小样本建模的TOPSIS-熵权决策综合评判方法对各节水措施综合效益进行评估分析。通过借助此方法既能降低评价结果主观性的影响,也可以解决在只有小样本数据情况下,快速准确地为施工单位选出与其施工环境条件相适应的高效节水措施的难题;最后,以甘肃地区某大型建设项目施工过程中的综合效益评价为研究对象进行实证分析,验证了所设计的评价指标及方法科学合理、评价结果客观准确,具有推广意义。

Application of TOPSIS-the method of entropy proportion in comprehensive evaluation about water-saving measures of green construction

At present, due to the diversity of environmental conditions on the construction site, the comprehensive benefits arising from different water-saving measures are very different. Nowadays, by combining with local investigations and Delphi method, we finally find out 19 comprehensive benefit evaluation indexes and set up the comprehensive benefit evaluation index system. Through the introduction of small sample model of TOPSIS-The Comprehensive Method of Entropy proportion, the comprehensive benefit of each water-saving measure is evaluated. Using this method can not only reduce the influence of the subjective evaluation results, but also solve the hard problem of selecting the high efficiency water saving measures which are suitable for the construction environment under the condition of small sample data. Finally, the comprehensive benefit evaluation in the construction process of a large construction project in Gansu Province is taken as the research object, which proves that the designed evaluation index and method are scientific and reasonable, the evaluation result is objective and accurate and has the significance of popularization.