The comprehensive evaluation of coordinated coal-water development based on analytic hierarchy process fuzzy
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RESEARCH ARTICLE
The comprehensive evaluation of coordinated coal-water development based on analytic hierarchy process fuzzy Xiaomin Liu 1 & Haiyan Liu 2 & Zheng Wan 1 & Haifeng Pei 1 & Hongmei Fan 1 Received: 6 May 2020 / Accepted: 4 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Reasonable evaluation of the comprehensive effect of coordinated coal-water development is necessary for the sustainable development of ecologically vulnerable area. Taken Nalinhe mining area as the research area and focused on the thick coal seam mining, an evaluation index system of the comprehensive effect of coordinated coal -water development was proposed. The analytic hierarchy process modified by particle swarm optimization and fuzzy comprehensive evaluation method was adopted to determine the weights and grade thresholds of the evaluation indicators. The comprehensive effect of coordinated coal-water development for three typical thick coal seam mining technologies of layered mining, one-time full height mining and coal caving mining was evaluated. The results show that the priority of the evaluation index system is geological system, ecological environment system, natural system, and mining system. The comprehensive effect ratings corresponding to the three typical thick coal seam mining technologies in Nalinhe mining area are poor, excellent, and average respectively. The method and results can provide some references for the rational evaluation and selection and application of coordinated coal-water development in ecologically vulnerable areas. Keywords Coordinated coal-water development . Ecologically vulnerable area . Analytic hierarchy process . Fuzzy comprehensive evaluation
Introduction China is rich in coal resources, and its coal output has consistently ranked first in the world for many years. Coal is China’s main basic energy source and the basis for national economic development, which supports the steady development of the country. Some experts believe that in the next half century, coal consumption will still account for more than half of primary energy consumption. Therefore, coal resources are the energy necessary for China’s social development, and the important role of coal resources in China’s energy resources will not change (Wu 2011; Ngan et al. 2019). The relationship between coal resources and water resources is dynamic. Before the exploitation of coal
* Haiyan Liu [email protected] 1
Water Conservancy and Civil Engineering College of Inner Mongolia Agricultural University, Hohhot, China
2
Beijing Information Technology College, Beijing, China
resources, both are two kinds of natural resources that coexisted in a certain area and there’s no contradiction or coordination between them (Wei et al. 2010). With the continuous exploitation of coal resources, the overlying strata of the coal seam subsided to the coal goaf, successively forming caving zone, fractured zone and continuous deformation zone in the vertical space. When the water flowing fractured zone is dest
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