基于Pareto进化算法的建筑工程多目标优化研究

Research on construction multi-objective optimization based on Pareto-evolutionary algorithm

工期短、成本低、资源均衡是建设单位追求的目标,通常各目标之间相互冲突,本文提出Pareto进化算法理论求解此类多目标优化问题,编制进化算法优化模型,采用Pareto理论和精英保留策略进行目标值选择,并引入小生境理论保持种群的多样性,产生多种施工方案供管理者选择。通过工程实例,验证了该模型正确可行。

In order to solve the conflicts between duration compression,a low cost and resource equalization in construction industry, the theory of Pareto-evolutionary algorithm is intro- duced, the evolutionary algorithm optimization model is established. Meanwhile , the Pareto the- ory and elitism strategy are used for multiple target selection, the Niche theory is used to main- tain the diversity of population, finally several construction methods are produced for manager to select. The result of the engineering example shows the algorithm has higher fitting preci- sion.