Hybrid NSGA-III and simulated annealing approach for multi-objective time–cost-quality-sustainability optimization in wastewater treatment plant construction projects

Q2 Engineering
Vijay Kumar, Lilesh Gautam, Ritu Dahiya
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引用次数: 0

Abstract

The construction of wastewater treatment plants (WWTPs) involves complex trade-offs among time, cost, quality, and sustainability. This study proposes a hybrid NSGA-III and Simulated Annealing (SA) approach to optimize these conflicting objectives in WWTP construction projects. The multi-objective optimization model considers four objectives: (1) minimizing total project duration, (2) minimizing total project cost, (3) maximizing project quality, and (4) maximizing project sustainability. The problem is formulated as a multi-mode resource-constrained project scheduling problem (MRCPSP) with real-world constraints such as budget limits, project deadlines, and activity dependencies. The hybrid NSGA-III and SA algorithm enhances solution diversity and convergence efficiency, overcoming limitations of traditional metaheuristic methods. A case study on a WWTP project is conducted, where multiple Pareto-optimal solutions are obtained and analyzed. A Weighted Sum Method is used to select the most balanced trade-off solution. Results demonstrate that the proposed hybrid approach outperforms conventional optimization algorithms in terms of solution quality, hypervolume, and computational efficiency. A comparative analysis with existing models highlights its superior performance in balancing trade-offs in large-scale construction projects. This research contributes to the field of sustainable infrastructure development by integrating optimization techniques that support efficient decision-making in WWTP construction.

污水处理厂建设项目多目标时间-成本-质量-可持续性优化的混合NSGA-III和模拟退火方法
污水处理厂(WWTPs)的建设涉及时间、成本、质量和可持续性之间的复杂权衡。本文提出了一种混合NSGA-III和模拟退火(SA)方法来优化污水处理厂建设项目中这些相互冲突的目标。多目标优化模型考虑四个目标:(1)最小化项目总工期,(2)最小化项目总成本,(3)最大化项目质量,(4)最大化项目可持续性。该问题被表述为一个多模式资源约束项目调度问题(MRCPSP),它具有现实世界的约束,如预算限制、项目截止日期和活动依赖关系。NSGA-III和SA混合算法提高了解的多样性和收敛效率,克服了传统元启发式算法的局限性。以某污水处理厂工程为例,得到并分析了多个帕累托最优解。采用加权和法选择最平衡的折衷方案。结果表明,所提出的混合方法在解决质量、超大容量和计算效率方面优于传统的优化算法。通过与现有模型的对比分析,表明该模型在大型建设项目的权衡中具有较好的性能。本研究通过整合优化技术支持污水处理厂建设的有效决策,为基础设施可持续发展领域做出贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Asian Journal of Civil Engineering
Asian Journal of Civil Engineering Engineering-Civil and Structural Engineering
CiteScore
2.70
自引率
0.00%
发文量
121
期刊介绍: The Asian Journal of Civil Engineering (Building and Housing) welcomes articles and research contributions on topics such as:- Structural analysis and design - Earthquake and structural engineering - New building materials and concrete technology - Sustainable building and energy conservation - Housing and planning - Construction management - Optimal design of structuresPlease note that the journal will not accept papers in the area of hydraulic or geotechnical engineering, traffic/transportation or road making engineering, and on materials relevant to non-structural buildings, e.g. materials for road making and asphalt.  Although the journal will publish authoritative papers on theoretical and experimental research works and advanced applications, it may also feature, when appropriate:  a) tutorial survey type papers reviewing some fields of civil engineering; b) short communications and research notes; c) book reviews and conference announcements.
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