Risk evaluation of dam-break environmental impacts based on the set pair analysis and cloud model

Ge, Wei; Li, Zongkun; Li, Wei; Wu, Manman; Li, Juanjuan; Pan, Yipeng

doi:10.1007/s11069-020-04237-9

Cited by 21 publications

(6 citation statements)

References 37 publications

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“…Although it is currently technically feasible to purify unconventional water resources to drinking water, considering other issues, such as production costs, potential risks, and social acceptance, unconventional water resources need to be used for other purposes other than drinking water, such as urban ecology, industry, and agriculture (Jodar-Abellan et al, 2019;Ge et al, 2020a;Zhang Y et al, 2022). Therefore, according to the water demand of different users, it is necessary to carry out targeted quality water supply, high quality and excellent use.…”

Section: Principles Of Water Supply By Qualitymentioning

confidence: 99%

Study on coordinated allocation of conventional and unconventional water resources in typical regions of North China

et al. 2023

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Introduction: The North China Plain is an important production base of grain, cotton, and fruits in China. However, the climate is dry and rainless, and thus, water resources are scarce. The combination of water resources, population, and cultivated land is extremely unbalanced, making the region a serious water shortage area in China. In addition to long-term groundwater over-exploitation, water shortage has become an important bottleneck, restricting the economic and social development of the North China Plain and national food security. Therefore, making full use of unconventional water resources and reducing the proportion of conventional water resources will alleviate the shortage of water resources and improve the utilization of water resources.Methods: Taking Hengshui City as an example, this paper establishes an optimal allocation model of water resources with the minimum relative water shortage rate as the objective function, the coordinated allocation of water resources between conventional and unconventional water resources is studied, and various available water sources are effectively allocated between regions and water use departments. The genetic algorithm is used to study the model, by taking 2020 as the starting year, and optimize the allocation of water resources in Hengshui City between 2020 and 2025.Results and Discussion: The results show that the water demand of each county in Hengshui City will be guaranteed in 2025, and there will be no water shortage. In the 2025 level year, the total amount of unconventional water resources in Hengshui City will increase compared with that in 2020, with an increase of 21.9144 million m3. Among them, there will be an increase in brackish water consumption, 11.3244 million m3, and an increase in sewage reuse water consumption, 10.59 million m3, which will effectively alleviate the contradiction between supply and demand of water resources in Hengshui City.

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Section: Principles Of Water Supply By Qualitymentioning

confidence: 99%

Study on coordinated allocation of conventional and unconventional water resources in typical regions of North China

et al. 2023

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“…The safety of hyperpower dams has always been a widely-concerned issue of every country. To ensure the security of dam, dam safety monitoring model is built for monitoring the actual operation state of the dams (Li et al, 2021;Ge et al, 2020) . The deformation of a dam is commonly used to reflect the working condition during the operation period (Bui et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Levy flight-improved grey wolf optimizer algorithm-based support vector regression model for dam deformation prediction

2023

Front. Earth Sci.

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Considering the strong non-linear time-varying behavior of dam deformation, a novel prediction model, called Levy flight-based grey wolf optimizer optimized support vector regression (LGWO-SVR), is proposed to forecast the displacements of hydropower dams. In the proposed model, the support vector regression is used to create the prediction model, whereas the Levy flight-based grey wolf optimizer algorithm is employed to search the penalty and kernel parameters for SVR. In this work, a multiple-arch dam was selected as a case study. To validate the proposed model, the predicted results of the model are compared with those derived from Grid Search algorithm, Particle Swarm Optimization, Grey Wolf Optimizer algorithm, and Genetic algorithm. The results indicate that the LGWO-SVR model performs well in the accuracy, stability, and rate of prediction. Therefore, LGWO-SVR model is suitable for dam engineering application.

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“…Meanwhile, the profits from the dual perspectives are also higher than those from a single economic perspective. Studies have also shown better simulation (Li et al, 2021), or evaluation results are obtained by using comprehensive evaluation models (Ge et al, 2020a;Ge et al, 2022) or considering multiple perspectives (Zhang et al, 2023). The main participants in SNWDP are the government and enterprises (water source companies and water supply companies), in which the government is committed to maintaining social welfare and public interests while enterprises pursue economic interests.…”

Section: Introductionmentioning

confidence: 99%

Research on decision-making of water diversion supply chain considering both social welfare and water quality utility

Jiao

Zhang

et al. 2023

Front. Earth Sci.

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When water diversion projects become important part of the water network around the world, the effective operation and management of the projects play important roles in giving full play to the optimal allocation of water resources. For the operation and management of water transfer, the decision-making of water supply chain under the scenario of economic benefit, producer surplus, and water quality utility should be considered simultaneously. According to the idea of supply chain, this paper regards water transfer operation management as a water supply chain composed of water transfer companies, water supply companies, and consumers. From the perspective of social welfare and water quality utility, a comprehensive optimization and coordination decision model for water transfer is proposed. Taking the South-to-North Water Diversion Project as the research object, the cost-sharing contract is designed, and the Stackelberg game method is used to optimize the decision-making and coordination of the water supply chain. The results show that when the concern coefficient and the cost-sharing ratio are evaluated within a given feasible value region, the profits of both the water transfer company and the water supply company can be improved. The feasible value interval of the concern coefficient decreases with the increase in the cost-bearing proportion. When the concern coefficient increases, the profit of the water transfer company decreases, while profit of the water supply company, water quality, consumer surplus, water quality utility, and utility of the water transfer company increase gradually. The results provide valuable references for water transfer decision-making.

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Risk evaluation of dam-break environmental impacts based on the set pair analysis and cloud model

Cited by 21 publications

References 37 publications

Study on coordinated allocation of conventional and unconventional water resources in typical regions of North China

Study on coordinated allocation of conventional and unconventional water resources in typical regions of North China

Levy flight-improved grey wolf optimizer algorithm-based support vector regression model for dam deformation prediction

Research on decision-making of water diversion supply chain considering both social welfare and water quality utility

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