Safety and stability evaluation of the uranium tailings impoundment dam: Based on the improved AHP-cloud model

Dai, Xingwang; Wu, Xianwei; Hong, Yang; Xie, Jing; Lin, Dongying; Chen, Yifan; Liu, Yong

doi:10.1016/j.jrras.2022.01.020

Cited by 17 publications

(9 citation statements)

References 14 publications

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“…The second point is to control the position of the entire mine dam on the river bank, which needs to calculate according to the wettability of the mine dam. First, the wettability determines the height of the entire mine dam, which is crucial to the stability [22]. At this time, the infiltration line exceeds the standard value, and corresponding measures should be taken immediately, that is, the water level around the dam can be reduced, the scope of the infiltration line can be reduced, the surrounding pressure can be reduced, and the length of the dry beach can be increased to ensure the stable position of the infiltration line In addition, if the phenomenon of exceeding the water level occurs, it is necessary to discharge all the seepage water of the mine dam to avoid the collapse of the mine dam.…”

Section: Discussionmentioning

confidence: 99%

[Retracted] Uncertainty Analysis of Key Influencing Factors on Stability of Tailings Dam Body

Qian

Kepeng

2023

Journal of Sensors

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With the continuous expansion of the mining scale of mineral resources, many tailings are produced. In order to avoid the impact of harmful substances in the tailings on the residents around the tailings pond, it is necessary to explain the stability improvement. The dam safety monitoring system is mainly composed of observation sensors, telemetry data acquisition module, industrial control network, and automatic monitoring system. Through the work of the computer, the dam observation data can be automatically collected, processed, analyzed, and calculated. This paper adopts the automated system that makes preliminary judgments and graded alarms on whether the dam’s behavior is normal or not to provide early safety warning reports for monitoring objects. In this paper, combined with a specific example of a tailings reservoir dam body, the comprehensive uncertainty method is used to analyze factors such as the height of the tailings dam, the height of the wetting line, the cohesion of the tailings soil layer, and the internal friction angle, and the stability of the dam body is calculated. The results show that the sensitivity order of the dam stability safety factor K to each factor is as follows: internal friction angle of the tailing silt layer > the height of the wetting line > dam body height > the cohesion of the tailing silt layer. The most dangerous slip surface will jump at the 19-level subdam of the tailings pond. The remediation measures are of great significance for maintaining the ecology around the tailings pond and ensuring the personal safety of residents.

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Section: Discussionmentioning

confidence: 99%

[Retracted] Uncertainty Analysis of Key Influencing Factors on Stability of Tailings Dam Body

Qian

Kepeng

2023

Journal of Sensors

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“…The improved AHP-FCE method was adopted to determine the index weights. Compared with the traditional AHP (1-9 scoring method), the improved AHP method's (0, 1, 2 scoring method) arithmetic process ensures the consistency of the model without the need for a consistency test [49][50][51][52][53]. Therefore, it is easier to obtain a unanimously accepted outcome, and the arithmetic efficiency is higher.…”

Section: Discussionmentioning

confidence: 99%

Comprehensive Social Cultural and Economic Benefits of Green Buildings Based on Improved AHP–FCE Method

et al. 2023

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Green buildings can effectively alleviate energy scarcity and improve environmental quality, and are becoming the mainstream mode of transformation and upgrading of the construction industry. It is given great importance by all sectors of society committed to implementing the “carbon peak” and “carbon neutral” goals earnestly. However, the unclear comprehensive benefits of green buildings restrict their development in China. The existing studies tend to be limited to a single aspect, such as economic benefits or environmental benefits. The purpose of this study is to establish a more systematic and complete evaluation system for green buildings’ comprehensive benefits. It can increase the consideration of the impact of social and cultural benefits, along with the first two benefits. Firstly, by also considering the triple bottom line principle and benefit principle, four primary indicators and twenty secondary indicators were selected to establish a comprehensive benefit evaluation system for green buildings. Secondly, an improved AHP–FCE method was adopted to determine the weights of each secondary indicator. Finally, the feasibility of the evaluation system was verified through a case study, and some suggestions for improving the comprehensive benefits of green buildings were put forward.

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“…method that was commonly used in dam safety evaluation was chosen [16][17][18]. Meanwhile, for the OWM, the CRITIC method was adopted [19,20].…”

Section: Study Damsmentioning

confidence: 99%

“…Based on the indicator values of the reservoir dam given in Table 2 and the CRITIC method introduced in this study, the weights of each indicator at the evaluation level were determined. As mentioned in the previous section, the AHP method [17,18] or the CRITIC method [19,20] were commonly used in the weight analysis of indicators in the dam safety assessment. To explore a more reasonable method to assess the weights of indicators, the weights based on the AHP, CRITIC, and GT methods were calculated, respectively.…”

Section: Weight Analysismentioning

confidence: 99%

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Comprehensive Assessment of Dam Safety Using a Game-Theory-Based Dam Safety Performance Measure

Fu,

Feng,

Luo

2024

Water

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More than 100,000 dams have been built in China and their safety conditions have drawn more attention to the stakeholders due to large socioeconomic effects, such as economic losses and casualties caused by dam incidents. Dam safety assessment was closely related to the safety conditions of various indicators and associated weights. However, traditional methods tended to adopt either the subjective weighting method (SWM) or the objective weighting method (OWM) to assess the weights of indicators, leading to an unreliable assessment of dam safety. To this end, this study proposed the game theory (GT)-based dam safety performance measure (DSPM) method to evaluate the safety level of dams. To assess the weights of all associated indicators of dams, the GT method that was used to capture the advantages of both the SWM and OWM was developed. The weights of each indicator were considered as variables and their values were obtained based on MATLAB. The DSPM that followed the form of the power-exponential function was proposed to assess dam safety. The whole method was exemplified by the five dams and the effectiveness of the proposed method was verified by comparing it with the code-based method (i.e., SL 258-2017). The results showed that the weights of indicators based on the analytic hierarchy process (AHP) method and the CRiteria Importance Through Intercriteria Correlation (CRITIC) method were different. The maximum and minimum percentage differences between the weights based on AHP and CRITIC methods were 107.4% and 3.1%, respectively, revealing that the weights obtained from only one method were unreliable. The proposed GT method was suitable for assessing the weights. Obtained superiority and inferiority rankings (SIRs) based on the GT-based DSPM and the code-based methods were consistent, which showed the effectiveness of the GT-based DSPM method. The code-based method concerning the dam safety levels was too rough to capture the dam performance accurately; the proposed method gave a more detailed classification, which provided important information on wise investments for the stakeholders when enhancing the performance of deficient dams.

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Safety and stability evaluation of the uranium tailings impoundment dam: Based on the improved AHP-cloud model

Cited by 17 publications

References 14 publications

[Retracted] Uncertainty Analysis of Key Influencing Factors on Stability of Tailings Dam Body

[Retracted] Uncertainty Analysis of Key Influencing Factors on Stability of Tailings Dam Body

Comprehensive Social Cultural and Economic Benefits of Green Buildings Based on Improved AHP–FCE Method

Comprehensive Assessment of Dam Safety Using a Game-Theory-Based Dam Safety Performance Measure

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