scholarly journals Analysis of Social and Environmental Impact of Earth-Rock Dam Breaks Based on a Fuzzy Comprehensive Evaluation Method

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.

2012 ◽  
Vol 524-527 ◽  
pp. 3750-3753 ◽  
Author(s):  
Zhan Feng Zhou

Implementation of reverse logistics is the foundation of developing circular economy and realizing sustainable development. According to the characters of green logistics, multi level evaluation index system of green degree of reverse logistics system is built in this paper, the weight of each index is determined by using the analytic hierarchy process, the system green degree is evaluated by applying the fuzzy comprehensive evaluation method and the result is analyzed. The result shows that the method is simple, accurate and has a good application.


2012 ◽  
Vol 253-255 ◽  
pp. 1593-1597 ◽  
Author(s):  
Jian Long Yan ◽  
Yong Cheng ◽  
An Hu Zhang ◽  
Yun Gang Zhao

Highway collapse hazard is the combined result of many factors. Based on the formation mechanism of the road collapse hazard and main the factors, they are selected from three aspects of risk assessments master factor: the regional geological structure, slope characteristics, and regional environmental characteristics, also ultimately select the spacing of the joints, slope lithology, slope structure, slope height, slope gradient, rainfall (rainfall in 24 hours to ≥ 25mm of days), the vegetation coverage degree and earthquake strong eight main control factors, above all these factors, they established a road collapse hazard evaluation index system. Based on the fuzzy comprehensive evaluation method, it establishes a road collapse hazard evaluation model. Analytic Hierarchy Process is used to determine the evaluation index system of layers in index weight values. Risk index is based on the evaluation criteria. Finally, an empirical study of two highway projects instances.


2013 ◽  
Vol 791-793 ◽  
pp. 2192-2195
Author(s):  
Xiao Ji Chen ◽  
Jing Zhong Liu ◽  
Xia Peng

With the rapid development of Japan-oriented software outsourcing, the demand for talent of computer science is increasing, reasonably making evaluation of talents comprehensive skills on Japan-oriented software outsourcing is important. This paper use fuzzy comprehensive evaluation method to research. First, show the evaluation index system and the weight of references; Then, the establish mathematical models of fuzzy evaluation, including single indicators of fuzzy evaluation and fuzzy comprehensive evaluation; The results of this research have the following characteristics, comprehensive consider various factors, objectively reflect the actual situation, simply use, evaluate accurately and reasonably, and in actual application, people should use evaluation method flexibly.


2011 ◽  
Vol 328-330 ◽  
pp. 2362-2366
Author(s):  
Ya Wen Dong ◽  
Bao Feng Zhang ◽  
Wen Hui Liu

Probing into the industry characteristics of construction operations and the necessity to make ergonomic improvement for construction operations, this paper analyzed the current research situation of the literature both at home and abroad which apply ergonomic principles to make improvement in construction operations. This study shows that the existing research on ergonomic improvement of construction operations mainly focus on construction safety and specific operations improvement, at the same time, the system research on the ergonomic improvement of construction operations is less. Making a China's leading internationalized construction service company as the object of empirical research, this paper designed the evaluation index system of construction operations’ man-machine-environment system from three factors of human, machine and environment. And applying the Fuzzy Comprehensive Evaluation Method, the paper evaluated the validity of the man-machine-environment system. At last, aiming at the evaluation results, some improvements were given in view of Ergonomics.


2013 ◽  
Vol 444-445 ◽  
pp. 1751-1755
Author(s):  
Qing Hua Zhan ◽  
Shi Mei Wang

This paper first introduces the meaning and mission of the economic evaluation of geological disasters,as well as the basic concepts of different economic evaluation, and then discuss the methods of economic evaluation of geological disasters, including multi-level fuzzy comprehensive evaluation method and statistical data evaluation method, and gives the outlook of the economic evaluation of geological disasters.


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