考虑生态环境影响的大型建设项目多目标优化决策  

Multi-objective Trade-off Optimization Decision of Large-scale Construction Project from the Perspective of Sustainable Development

作　　者：郑欢[1] 白海龙 ZHENG Huan;BAI Hai-long(Administration School of Chongqing Technique and Business University,Chongqing 400067,China;Party Office of Chongqing Technique and Business University,Chongqing 400067,China)

机构地区：[1]重庆工商大学管理学院,重庆400067 [2]重庆工商大学党政办,重庆400067

出　　处：《系统工程》2018年第2期80-94,共15页Systems Engineering

基　　金：教育部人文社会科学青年项目(14XJC630011);重庆市科委基础与前沿研究计划项目(cstc2016jcyjA0442);重庆市教委科学技术研究项目(KJ1600608);重庆市教委人文社科研究项目(16SKJD32);重庆工商大学电子商务及供应链系统重庆市重点实验室开放基金资助项目

摘　　要：大型建设项目是我国社会和经济发展的重要驱动因素,而决策是其关键环节,在很大程度上决定着其能否持久和充分的发挥作用。学界对于项目的工期、成本和质量这三个非常重要的方面展开了大量研究,而随着社会文明的进步,可持续发展战略进一步实践和落实,生态环境日益受到重视,逐渐成为与经济发展同等重要的关键要素,大型建设项目在决策阶段需基于生态环境的角度考虑项目价值。本文研究考虑生态环境影响的大型建设项目多目标优化决策,建立了离散时间-成本-质量-环境平衡问题(discrete time-cost-qualityenvironment trade-off problem,DTCQETP)的多目标优化模型及其算法,将最小化工期、最小化成本、最小化质量缺陷和最小化环境影响作为目标函数,然后,基于该模型的特征提出了模糊自适应混合遗传算法用以来求DTCQETP的最优解,最后,锦屏二级水电站大型深埋隧道群建设项目作为一个真实的案例来证明该优化方法的经济有效性、技术有效性以及社会生态有效性。与现有模型相比,该模型更加接近实际,不仅将三维的时间-成本-质量、时间-成本-环境平衡模型拓展为四维的时间-成本-质量-环境平衡优化模型,而且还考虑了环境影响的模糊不确定性。特别是,本文假设环境影响特征是模糊数,用一定的置信水平和假设水平来描述,因此用模糊逻辑来处理一定执行模式下的项目环境影响。The use of innovative contracting methods and the implementation of stronger environmental protection regulations that focus on new incentives to improve construction quality and reduce constructions＇ environmental impact has placed increasing pressure on decision makers, especially those in hydroelectric construction projects. This has lead to the need to find an optimal scheduling and selection execution mode for each activity that minimizes not only project time and cost, but also quality defect levels and the environmental impact. This paper studies a multi-objective optimal model for solving a discrete time-cost-quality-environment trade-off problem （DTCQETP） with multiple modes for the large scale deeply-buried tunnel group project at Jinping-II Hydropower Station. In contrast to prior studies, the model is designed to extend a three-dimensional time-cost-quality or a time-cost-environment trade-off analysis to a four-dimensional time-cost-quality-environment trade-off analysis. Due to the computational complexity of the model, an adaptive-hybrid genetic algorithm is developed to find an optimal solution to the DTCQETP. Finally, the large-scale deeply-buried tunnel group project in Jinping-II Hydropower Station is used as a real-world example to demonstrate the economic, technological, and social ecological effectiveness of the optimization method.

关 键 词：离散时间-成本-质量-环境平衡问题 生态环境影响 锦屏二级水电站大型深埋隧道群建设项目 大型 建设项目 自适应混合遗传算法 

分 类 号：G311[文化科学] F224[经济管理—国民经济]