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Application of TOPSIS water abundance comprehensive evaluation method for karst aquifers in a lead zinc mine, China

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Abstract

This paper presents a water abundance evaluation method based on improved fuzzy analytic hierarchy process (IFAHP) and entropy weight method (EWM) to solve the problem of unclear water abundance of karst aquifer in deep ore body mining. Taking the Maoping lead zinc mine in the southwest China as the research area, seven water abundance evaluation factors were selected to construct factor evaluation system. Then, comprehensive weights of evaluation factors were determined by game theory. Finally, a technique for order preference by similarity to an ideal solution (TOPSIS) water abundance evaluation model was established to identify water abundance zones with geographic information system (GIS). The results show that the weights determined by the iterated IFAHP, reflecting the mutual importance of the actual evaluation factors, enhances the accuracy of the subjective weights of the evaluation factors; the subjective and objective weight coefficients of evaluation factors determined by the game theory improves the rationality of the comprehensive weight model; compared with the unit inflow method, the comprehensive weighted TOPSIS water abundance evaluation model divides the water abundance zoning map in more detail, with a better fitting effect with the actual water inrush points of the study area. Consequently, the TOPSIS water abundance evaluation model not only provides theoretical guidance for the evaluation of karst aquifer water abundance, but also has guiding significance for the mining planning of ore body under the condition of karst aquifer.

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Acknowledgements

The authors thank the National Natural Science Foundation of China under Grant No. 42172293 for its financial support.

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Correspondence to Wanghua Sui.

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Communicated by H. Babaie

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Li, Q., Sui, W., Sun, B. et al. Application of TOPSIS water abundance comprehensive evaluation method for karst aquifers in a lead zinc mine, China. Earth Sci Inform 15, 397–411 (2022). https://doi.org/10.1007/s12145-021-00730-2

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  • DOI: https://doi.org/10.1007/s12145-021-00730-2

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