Study on the Gray Fuzzy Comprehensive Evaluation Model about Dam-Break Consequences

2012 ◽  
Vol 594-597 ◽  
pp. 1965-1968
Author(s):  
Xiao Ling Wang ◽  
Qing Song Wang ◽  
Rui Rui Sun ◽  
Xue Fei Ao

The comprehensive evaluation of the dam-break consequences is an issue of crucial importance for defending natural disasters, protecting socio-economic and sustaining ecological development. The consequences of dam-break were analyzed, including life loss, economic loss and the social and environmental influence. The loss of life evaluation based on the improved Graham method was introduced. Depth, velocity and other hydraulic parameters of dam-break flood were obtained by the three-dimensional numerical simulation, which has proved to be a useful tool for dam-break consequences. AHP method was adopted to measure the weight of each factor. Grey fuzzy comprehensive evaluation of dam-break consequences was proposed. QING LINJING reservoir in Shenzhen was taken as a case. The results show that it will cause serious incidents once QING LINJING reservoir dam breaks.


2020 ◽  
Vol 12 (15) ◽  
pp. 6239 ◽  
Author(s):  
Hao Gu ◽  
Xiao Fu ◽  
Yantao Zhu ◽  
Yijun Chen ◽  
Lixian Huang

A large proportion of the dams in China are earth-rock dams. Regarding the well-studied loss of life and economic consequences due to dam breaks, this paper introduces the causes and modes of earth-rock dam breaks and the corresponding dam-break losses in terms of the social and environmental aspects. This study formulates the evaluation index system and criteria of earth-rock dam breaks’ impact on society and the environment based on a fuzzy comprehensive evaluation method. The results show that the evaluation grade of the social and environmental impact of the dam break of the Liujiatai Reservoir was “serious”. Therefore, similar dams in China should take corresponding measures in advance to reduce the social and environmental impact of earth-rock dam breaks.



2013 ◽  
Vol 281 ◽  
pp. 692-695
Author(s):  
Ying Guo ◽  
Li Quan Men

Assessing social insurance fund safety objectively is useful to make effective risk management and control, so as to lower the economic loss. The fuzzy comprehensive evaluation method based analytical hierarchy process(AHP) is adopted to evaluate the social insurance fund safety. And social insurance fund safety evaluation index system is established according to the characteristics of the social insurance fund safety and the development tendency of social insurance .Then AHP method is applied to determine the more reasonable index weight and the fuzzy comprehensive evaluation model is used to evaluate social insurance fund safety of three cities.Finally, some improvement suggestions are proposed. The results show that the index is reasonable and quantitative and the method can help improve the safety of the social insurance fund as well as provide decision-making for the government.



2014 ◽  
Vol 580-583 ◽  
pp. 2708-2712
Author(s):  
Hua Ding ◽  
Li Shuang Sun ◽  
Jing Li Wang ◽  
Xin Wang

This paper absorbs much successful experience from geological disasters database system designed and built at home and abroad, based on remote sensing (RS), geographic information systems (GIS) and GPS technology, adopt AHP, fuzzy comprehensive evaluation model and method of establishing three-dimensional model of geological disasters in high-risk areas, the paper constructs geological disasters database system in Liaoning Province, this database system can manage and monitor geological disasters and provide strong support analysing geological disasters for Liaoning province areas.



2012 ◽  
Vol 229-231 ◽  
pp. 1850-1853
Author(s):  
Xiao Ling Wang ◽  
Xue Fei Ao ◽  
Rui Rui Sun ◽  
Wei Ping Guo

Dam break is a serious social disaster, which causes a great deal of damage to the society and environment. In this paper, a 3D turbulence model coupled with the Volume of Fluid (VOF) method for the dam-break flood propagating is established, the loss of life resulting from dam failure is calculated by the modified Graham method, a statistical method is used for the economic loss, the main factors for social and environmental impacts are introduced, and finally the linear weighting method is carried out for comprehensive evaluation and analysis of dam-break consequences. The dam-break consequences of Dongwushi reservoir in Handan is taken as a case, the life loss, the economic loss, as well as social and environmental impacts are analyzed, and then a comprehensive evaluation of the dam-break consequences carried out.



2011 ◽  
Vol 383-390 ◽  
pp. 2151-2155
Author(s):  
Xiao Ling Wang ◽  
Zheng Yin Zhou ◽  
Rui Rui Sun ◽  
Sha Sha Zhou

Consequences of dam-break are affected by many factors, which are of a certain degree of ambiguity. Influencing factors of dam-break consequences are summarized in this paper. At first, weights of influencing factors are determined by means of Analytic Hierarchy Process (AHP), thereafter, the fuzzy hierarchy synthesis evaluation model for dam failure is developed. Finally, Qing Linjing reservoir located in Shenzhen of China is taken as a case. The fuzzy comprehensive evaluation for the risk analysis of dam-break and the risk grades of dam-break consequences are obtained. The results indicate that it is reasonable and valuable to evaluate the risk of dam-break by using fuzzy comprehensive evaluation.



2018 ◽  
pp. 172-182 ◽  
Author(s):  
Shengmin CAO

This paper mainly studies the application of intelligent lighting control system in different sports events in large sports competition venues. We take the Xiantao Stadium, a large­scale sports competition venue in Zaozhuang City, Shandong Province as an example, to study its intelligent lighting control system. In this paper, the PID (proportion – integral – derivative) incremental control model and the Karatsuba multiplication model are used, and the intelligent lighting control system is designed and implemented by multi­level fuzzy comprehensive evaluation model. Finally, the paper evaluates the actual effect of the intelligent lighting control system. The research shows that the intelligent lighting control system designed in this paper can accurately control the lighting of different sports in large stadiums. The research in this paper has important practical significance for the planning and design of large­scale sports competition venues.



2013 ◽  
Vol 756-759 ◽  
pp. 715-719
Author(s):  
Huan Cheng Zhang ◽  
Ya Feng Yang ◽  
Feng Li ◽  
Li Nan Shi

In the College, performance evaluation system is directly related to the harmonious development of the school. Taking into account the factors in the evaluation system is fuzzy, so this paper uses fuzzy comprehensive evaluation model. But the model is too subjective, so this paper combines neural network and data envelopment analysis method, which ensures that fuzzy comprehensive evaluation model is reasonable and scientific, and good school development and teacher self-interest. The performance assessment process, not only enables the combination of qualitative and quantitative analysis, but also fair and reasonably reflect the achievements of teachers, while this method is easy to use, wide application, and can be well applied in practice.



Sign in / Sign up

Export Citation Format

Share Document