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Assessment of water inrush and factor sensitivity analysis in an amalgamated coal mine in China

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Abstract

Hydrogeological data are generally incomplete and inaccurate in amalgamated coal mines in China, which results in inaccuracy in water inrush forecasts. To enhance the precision of the prediction of water inrush from coal floor in an amalgamated coal mine, the vulnerability index method was developed using an analytic hierarchy process (AHP) to analyze the water inrush hazard. Six factors related to water inrush were selected and the corresponding single factor thematic map was established through geographic information system (GIS). The AHP model was built to calculate the weight of each factor. The final forecast map based on vulnerability index was acquired by superposing the six thematic maps. The forecast map was consistent with the real water inrush position. The sensitivity of the six factors was analyzed and the water-resisting layer played a significant role in controlling water inrush. Several suggestions about water inrush prevention were put forward based on the prediction results.

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Funding

This study was supported by the National Key Research and Development Program of China (Grant No. 2016YFC0801401), the Fundamental Research Funds for the Central Universities of China (Grant No. 2010YL10), and the National Natural Science Foundation of China (Grant No. 51474096).

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Authors and Affiliations

  1. School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, 100083, China

    Weisheng Du & Yaodong Jiang

  2. School of Engineering, The University of British Columbia, Kelowna, British Columbia, V1V 1V7, Canada

    Weisheng Du

  3. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing, 100083, China

    Yaodong Jiang

  4. School of Mining, Guizhou University, Guiyang, 550025, China

    Zhenqian Ma

  5. Anhui Province Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mine, Anhui University of Science and Technology, Huainan, Anhui, 232001, China

    Zhenhua Jiao

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  1. Weisheng Du
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  2. Yaodong Jiang
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  3. Zhenqian Ma
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  4. Zhenhua Jiao
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Corresponding author

Correspondence to Weisheng Du.

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Du, W., Jiang, Y., Ma, Z. et al. Assessment of water inrush and factor sensitivity analysis in an amalgamated coal mine in China. Arab J Geosci 10, 471 (2017). https://doi.org/10.1007/s12517-017-3261-0

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  • DOI: https://doi.org/10.1007/s12517-017-3261-0

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