Comprehensive Evaluation of the Stability of Coal Mining Subsidence Based on Fuzzy Matter-Element Theory

2011 ◽  
Vol 361-363 ◽  
pp. 241-245
Author(s):  
Wen Sheng Liu ◽  
Fan Yue Li ◽  
Xian Tao Guo
Keyword(s):  
Coal Mining ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Criteria ◽  
Fuzzy Comprehensive Evaluation ◽  
Element Model ◽  
Mining Subsidence ◽  
Coal Mining Subsidence ◽  
The Stability ◽  
Element Theory

Established the Fuzzy matter-element Model for Comprehensive Evaluation of the stability of coal mining subsidence. Analyzed each factor of the stability of coal mining subsidence, and constructed Fuzzy Comprehensive Evaluation of coal mining subsidence. With Fuzzy matter-element theory, make the stability of coal mining subsidence as matter element thing, Application of the things of the evaluation criteria and the fuzzy values to construct compound fuzzy matter element, and calculate the weights of each index with AHP, construct degree Evaluation Model with the concept of closeness, in order to achieve the stability evaluation of coal mining subsidence.

Comprehensive Evaluation of Water Resources Carrying Capacity in Jiansanjiang Branch Bureau

2011 ◽  
Vol 204-210 ◽  
pp. 834-837 ◽  
Author(s):  
Ping Lv ◽  
Dong Liu ◽  
Fei Fei Zhao
Keyword(s):  
Water Resources ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Water Security ◽  
Fuzzy Comprehensive Evaluation ◽  
Element Model ◽  
Security Issues ◽  
Water Resources Carrying Capacity ◽  
Grey Correlation Analysis ◽  
Matter Element Model

Aiming at water security issues existed in water resources development and utilization, studied the water resources carrying capacities of fifteen farms in Jiansanjiang branch bureau in 2008. Used grey correlation analysis to establish evaluation indices system. Entropy theory was introduced into weight calculation. Synthesized evaluation results of traditional matter-element model, fuzzy comprehensive evaluation model and fuzzy matter-element model to grade water resources carrying capacities. The results show that water resources carrying capacities of Farm Shengli, Qindeli, Qianshao and Qianfeng are gradeⅠ; carrying capacities of Farm 859, Daxing, Qinglongshan, Qianjin, Honghe, Yalvhe and Nongjiang are gradeⅡ; carrying capacities of Farm Qixing, Chuangye, Hongwei and Erdaohe are gradeⅢ. The study achievements provide scientific evidences for water resources protection and sustainable utilization in Jiansanjiang branch bureau.

Fuzzy Comprehensive Evaluation of Safety Culture in Coal Mining Enterprises

2015 ◽  
Vol 724 ◽  
pp. 373-377 ◽  
Author(s):  
Can Liu ◽  
Jie Liu ◽  
Jing Xian Wang
Keyword(s):  
Coal Mining ◽  
Safety Culture ◽  
Safety Management ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Good Level ◽  
Mining Enterprise ◽  
Comprehensive Evaluation Model

Evaluating safety culture of coal mining enterprises can promote effectively their safety management. This paper introduces an improved fuzzy comprehensive evaluation model specially designed for the safety culture evaluation of coal mining enterprises. Evaluation index system which is comprised of 4 first-layer indexes and 15 second-layer indexes is established based on ANP, and then the weights of indexes are calculated by Super Decisions software. The FCE model for safety culture of coal mining enterprises is built to assess accurately the safety culture of coal mining enterprise S based on the indexes system. The evaluation results indicate that the evaluative value of enterprises S is “71.979”, which stays in the “generally good” level. Thus, enterprises S should implement timely rectification measures to reach the “better” or “very good” level. The method of fuzzy comprehensive evaluation is a practical and efficient way to assess safety culture of coal mining enterprises.

Analysis of the Surrounding Rock's Stability Based on Fuzzy Comprehensive Evaluation Model

2012 ◽  
Vol 226-228 ◽  
pp. 1390-1395
Author(s):  
Xia Zhong Zheng ◽  
Qiao Ling Chen ◽  
Hua Fei Li ◽  
Peng Fei Shi
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Surrounding Rock ◽  
Underground Engineering ◽  
Rock Classification ◽  
Engineering Construction ◽  
Comprehensive Evaluation Model ◽  
Hydropower Engineering ◽  
The Stability

In underground engineering construction of water conservancy and hydropower engineering, determining surrounding rock excavation and supporting construction measures and parameters according to the classification of surrounding rock's stability is an effective method. In hydropower engineering field, it made some achievements of surrounding rock classification through the engineering geological mechanics parameters. but there are some problems in the application. After the study, this paper established a fuzzy comprehensive evaluation model to determine the stability of surrounding rock. Practice has proved it to be more reasonable.

scholarly journals Assessment of Land Reclamation Benefits in Mining Areas Using Fuzzy Comprehensive Evaluation

2020 ◽  
Vol 12 (5) ◽  
pp. 2015 ◽  
Author(s):  
Xueyi Yu ◽  
Chi Mu ◽  
Dongdong Zhang
Keyword(s):  
Coal Mine ◽  
Land Reclamation ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Criteria ◽  
Fuzzy Comprehensive Evaluation ◽  
Mining Area ◽  
Scoring Method ◽  
Land Type ◽  
Mining Areas

Land reclamation plays a vital role in the ecological improvement and economic development of mining regions. This study aims to conduct a preliminary discussion on the evaluation content, evaluation methods, and evaluation indicators of land reclamation benefits in mining areas. Using fuzzy comprehensive evaluation (FCE) method, land reclamation was assessed. After compiling a model of the land reclamation influencing factors, an evaluation index of land reclamation benefit in the mining area was constructed using the land reclamation monitoring data for the northern part of the mining area over the last decade. In addition, an expert scoring method and a traditional evaluation model were used to estimate the comprehensive benefits of land reclamation at Hanjiawan coal mine in Shendong mining area. Land reclamation markedly improved the land type within the mining region and decreased the amount of damaged land, including subsided and occupied land. Moreover, land reclamation improved the available land area such as agricultural and construction land. The proposed model obtained an overall 63% increase in the land reclamation area. Different degrees of ecological, economic, and social benefits of Hanjiawan coal mine were observed; however, the ecological benefits were the most significant, with a growth rate of 56%. Based on the evaluation criteria, all benefits of the mining area after reclamation were good. Over time, land reclamation will offer greater comprehensive benefits to the mining area. Furthermore, this method can be used for precise evaluation of comprehensive benefits after land reclamation, and the assessment results will provide a reference basis for sustainable development of the mining area.

Fuzzy Comprehensive Evaluation for Reconfigurable Assembly Line

2011 ◽  
Vol 108 ◽  
pp. 80-85
Author(s):  
Ming Hai Yuan ◽  
Ze Zhong Wang
Keyword(s):  
Assembly Line ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Evaluation Criteria ◽  
Engineering Application ◽  
Reference Value ◽  
Fuzzy Comprehensive Evaluation ◽  
New Combination ◽  
Weighting Method ◽  
Reconfigurable Assembly

On the basis of the analyzing of the criterion of the evaluation index, a comprehensive evaluation model for RAL (reconfigurable assembly line) is proposed based on the hierarchy analysis according to the characteristics of the RAL and the engineering application. The new combination weighting method is used to calculate the weights of every index, and the index is assessed by fuzzy synthetically evaluation. The subordinate degree of evaluation object relative to optimum reference value adopting least squares principle is regarded as the evaluation criteria. Finally, this method is demonstrated to be reasonable and effective by a simulation example.

The Application of the Improved Interval Number Fuzzy Comprehensive Method in Bridge Evaluation

2010 ◽  
Vol 163-167 ◽  
pp. 3285-3291
Author(s):  
Zhao Lan Wei ◽  
Qian Hui Pu ◽  
Xue Jin Huo
Keyword(s):  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Interval Number ◽  
Fuzzy Evaluation ◽  
Existing Problems ◽  
Variable Weight ◽  
Key Issues ◽  
The Stability

The key issues in the theory of interval number fuzzy comprehensive evaluation are discussed in this paper, which includes weight interval calculation, quantitative index dimensionless method and etc. Due to the deficiency of “line method” for interval number formation, one improved method is given to increase the stability of interval number. Then the existing problems of several initial evaluation models are discussed, and the probability theory is introduced to improve evaluation model combined with coefficient of variable weight method. This improved interval number fuzzy evaluation method is adopted on one concrete cable-stayed bridge to general evaluate its safety and durability. The result shows that this improved fuzzy evaluation method can well reflect the general working status of the bridge and have good feasibility and practicality.

Fuzzy Comprehensive Assessment of Urban Underground Power Cable Infrastructure Safety Risk

2013 ◽  
Vol 860-863 ◽  
pp. 2544-2548
Author(s):  
Tai Hua Yang ◽  
Qing Hua Zheng ◽  
Yang Wang
Keyword(s):  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Fuzzy Comprehensive Evaluation ◽  
Evaluation Index System ◽  
Power Cable ◽  
Safety Risk ◽  
Underground Cable ◽  
Safety And Reliability ◽  
Underground Power Cable ◽  
The Stability

The power cable is one of the most important infrastructures, which safety and reliability is of an important significance to the stability and development of urban. To the safety risk features of urban power cable infrastructure, this paper proposed the safety risk evaluation index system and quantitative identification method based on analyzing the composition and construction features, and established the fuzzy comprehensive evaluation model of underground cable infrastructure safety risk. A case study shows that this method is feasible, and consistent with the practical construction, and proposed the measures to prevent the occurrence of major hazards.

Fuzzy Comprehensive Evaluation of Open-Pit Slope Stability

2014 ◽  
Vol 962-965 ◽  
pp. 1029-1033 ◽  
Author(s):  
Shao Jie Feng ◽  
Ai Min Yao ◽  
Yan Fei Dong
Keyword(s):  
Slope Stability ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Influence Factors ◽  
Fuzzy Comprehensive Evaluation ◽  
Open Pit ◽  
Slope Engineering ◽  
Mine Slope ◽  
The Stability ◽  
Main Influence

According to the stability of open-pit slope, the main influence factors of the slope stability is analyzed firstly. Then, based on the basic principle and method of fuzzy mathematics, the slope stability analysis of fuzzy and comprehensive evaluation further more model is established and the grading index of the slope stability is determined. Finally, by analyzing an example of large open-pit mine slope engineering, the stability of the slope is evaluated. The results show that the evaluation model could consider the uncertain properties in actual slope problems,and the evaluation result is reasonable.

The Fuzzy Matter-Element Comprehensive Evaluation Model for Erosion Stability of Geocell Protection of Slope and its Application

2012 ◽  
Vol 594-597 ◽  
pp. 2945-2950
Author(s):  
Guang Yue Wang ◽  
Jan Wu Zhao
Keyword(s):  
Index System ◽  
Comprehensive Evaluation ◽  
Evaluation Model ◽  
Element Model ◽  
Stability Evaluation ◽  
Correlation Degree ◽  
Comprehensive Evaluation Model ◽  
The Index System ◽  
The Stability ◽  
Matter Element Model

To solve the existing fuzziness in the grading of stability evaluation of geocell protected slope and inconsistent between evaluation result by single index and the fact, this paper establishes index system of the stability evaluation of geocell protection of slope and propose a method. First, two-grade Fuzzy Matter-element Model is established based on the index system. Second, factor weights of evaluation index are calculated by AHP. Finally, the grade of the stability of geocell protection of slope is obtained based on Correlation Degree. Analysis results show that based on comprehensive consideration of subjective factors and objective factors, this method is effective and agrees well with engineering practical.

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