期刊
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
卷 141, 期 11, 页码 -出版社
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)WR.1943-5452.0000550
关键词
Simulation-optimization model; Drainage-inundation model; Genetic algorithm; Multiobjective optimization; Detention pond
资金
- Ministry of Science and Technology of the Republic of China (Taiwan) [NSC 101-2218-E-006-020-MY3]
The study aims to propose a simulation-optimization model for deciding the optimal combination of detention ponds, which comprises a two-dimensional physiographic drainage-inundation model and a nondominated sorting genetic algorithm II (NSGA-II). Dian-Bao River Basin in southern Taiwan is chosen as the study area. Five detention-pond candidates with different sizes and locations are adopted for optimizing their combination. One-day design rainfalls for different return periods (i.e., 2, 5, 10, and 25 years) are used as the model input. During the optimization process, two conflicting objectives (i.e., the investment cost and the inundation-damage cost) are minimized to obtain the Pareto-optimal solutions by using the NSGA-II. Based on the posterior approach, the compromise solutions for different return periods are obtained. A cost-benefit analysis is further used to evaluate the compromise solutions for different return periods. The optimal combination of detention ponds for the return period (e.g., 25 years in the study case) with the highest value of direct benefit-cost ratio can be suggested for decision making. (C) 2015 American Society of Civil Engineers.
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