A New Risk Assessment System Based on Set Pair Analysis – Variable Fuzzy Sets for Underground Reservoirs

Li, Min; Zheng, Tianyuan; Zhang, Jian; Fang, Yunhai; Liu, Jiang; Zheng, Xilai; Peng, Hui

doi:10.1007/s11269-019-02390-w

Cited by 15 publications

(12 citation statements)

References 22 publications

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“…Mine water protection and utilization has always been an important issue that needs to be solved in the process of coal mining in mining areas. In particular, in recent years, all sectors of society have paid increasingly more attention to the ecological environment, forcing enterprises to continually carry out technological innovations to fundamentally solve the problem of water resources protection and utilization, thus achieving the goal of 'zero discharge' and 'optimal utilization' of mine water (Hannan & Broz 1976;Cao et al 2019;González-Quirós & Fernández-Álvarez 2019;Li et al 2019;Zhao et al 2019;Jiao et al 2020). Underground reservoir has the characteristics of no land occupation, large storage capacity and small evaporation loss (Hannan & Broz 1976, Menéndez et al 2019Fan et al 2020;Menéndez et al 2020;Song et al 2020;Wang et al 2020a, 2020b, 2020c, Yao et al 2020Yang et al 2020).…”

Section: Resultsmentioning

confidence: 99%

Prediction of water source and water volume of underground reservoir in coal mine under multiple aquifers

Chi

Cao

et al. 2022

Water Supply

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The role of coal mine underground reservoir(CMUR) in ‘guide storage and use’ greatly solves the problem of mine water waste. Replenishment and prediction of reservoir water sources provides an important support for the successful development of key technologies concerning CMUR. To study water replenishment for CMUR, the hydrogeological conditions of the Shendong mining area are investigated as an example. Based on the relationship between the development height of the ‘two belts’ of shallow coal seams and the relative occurrence location of aquifers, the aquifers are generalized and classified according to occurrence location. Taking Bulianta Coal Mine as the research background, a discrete element fluid-solid coupling numerical simulation model is constructed to analyze the development characteristics of mining-induced fractures after coal seam mining, and the water replenishment channel of the CMUR is determined. On this basis, analysis is made on the change law of water pressure in the aquifer, aquifuge and coal seam roof under mining action. Taking hydraulic head pressure and water velocity as the judgment basis, prediction and evaluation are made on the water replenishment capacity of CMUR. The research results can provide references for coal mine safety production and mine water protection and utilization.

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Section: Resultsmentioning

confidence: 99%

Prediction of water source and water volume of underground reservoir in coal mine under multiple aquifers

Chi

Cao

et al. 2022

Water Supply

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“…The water abundance level is an important prerequisite for the formation of separation water, and its weight is also high in the model. 38 …”

Section: Discussionmentioning

confidence: 99%

Evaluation on the Risk of Water Inrush Due to Roof Bed Separation Based on Improved Set Pair Analysis–Variable Fuzzy Sets

Zhang

Wang

et al. 2022

ACS Omega

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To study and prevent bed separation water inrush accidents in coal mines, it is necessary to evaluate the risk according to the limited geological data correctly. In this work, based on hydrogeological and mining conditions, we established a risk evaluation model and selected seven important factors, including the aquifer thickness, aquifer water abundance, hydraulic pressure of the aquifer, effective aquifuge thickness, mining failure ratio, mining height of the working face, and advancing distance as evaluation indexes. The intuitionistic fuzzy analytic hierarchy process (IFAHP) and entropy weight method (EWM) were used to analyze the weights of the original data, and the minimum information entropy principle was used to further integrate the abovementioned calculation results. With the weight results, set pair analysis–variable fuzzy set (SPA-VFS) theory was applied to determine the risk grade of each working face, which provided scientific guidance for the safe mining of coal mines. For the working face where water inrush may occur, the risk of bed separation water inrush can be reduced by optimizing the parameters or changing the mining conditions through the model analysis.

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“…Set pair analysis (SPA) is a new system uncertainty analysis method which fully reflects the certainty and uncertainty relationships between evaluation samples and evaluation criteria by the same-different-inverse structure of connection number for the set pair constructed by these two sets (Zhao, 2000;Kumar and Garg, 2016;Chong et al, 2017). This method has been widely used to comprehensively evaluate water resources system problems (Wang et al, 2009;Li et al, 2019;Zhang et al, 2021). Yang et al (2014) used SPA to evaluate the vulnerability of water resources system.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Evaluation and Diagnosis of Water Resources Carrying Capacity (WRCC) Based on Dynamic Difference Degree Coefficient in the Yellow River Irrigation District

Zhou

Jin

et al. 2022

Front. Earth Sci.

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In order to effectively deal with the uncertainty between evaluation samples and evaluation criteria, and quantitatively identify the water resources carrying capacity (WRCC) and its obstacle factors in the Yellow River irrigation district, a calculation method of dynamic difference degree coefficient varying with evaluation sample was proposed, and then an evaluation and diagnosis model of WRCC was established. The results applied to the Dagong irrigation district showed that the overall WRCC of five counties in the irrigation district were improved from 2010 to 2017, especially since 2013. The improvement magnitudes of Changyuan County, Fengqiu County, and Hua County were significantly higher than those of Xun County and Neihuang County. In 2017, Fengqiu County, Changyuan County, Hua County, Xun County, and Neihuang County were in water resources critical overloaded status, and the connection number values were 0.231, 0.163, 0.120, −0.293, and −0.331, respectively, which is consistent with the fact that their distances become farther from the main stream of the Yellow River. In addition, the utilization ratio of water resources, available water resources amount per capita, GDP per capita, and water deficient ratio in each county belonged to the middle or strong obstacle index over a long period of time. They were the crucial obstacle factors of WRCC in the Dagong irrigation district, as well as the core and difficult points of water resources management. In some counties, the effective irrigation area ratio, effective utilization coefficient of irrigation water, and water consumption ratio of the ecological environment gradually developed from strong obstacle to weak or strong promotion index. These were important reasons for the improvement of their carrying situation, reflecting their control of agricultural and ecological water consumption. In short, the results of the case study suggest that the model established in this study is conducive to the identification of water resources’ carrying status and its key obstacle factors in the Yellow River irrigation district, and can be applied to the evaluation and regulation of resources and environment carrying capacity.

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A New Risk Assessment System Based on Set Pair Analysis – Variable Fuzzy Sets for Underground Reservoirs

Cited by 15 publications

References 22 publications

Prediction of water source and water volume of underground reservoir in coal mine under multiple aquifers

Prediction of water source and water volume of underground reservoir in coal mine under multiple aquifers

Evaluation on the Risk of Water Inrush Due to Roof Bed Separation Based on Improved Set Pair Analysis–Variable Fuzzy Sets

Quantitative Evaluation and Diagnosis of Water Resources Carrying Capacity (WRCC) Based on Dynamic Difference Degree Coefficient in the Yellow River Irrigation District

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