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A study of mine water inrushes by measurements of in situ stress and rock failures

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  • Shangxian Yin
  • Jincai Zhang
  • Demin Liu

Abstract

This paper presents underground measurements (e.g., mini-frac tests) for in situ stress, hydraulic fractures, strata failures and hydraulic conductivity enhancement induced by coal extraction to study mechanisms of coal mine water inrushes. Mining perturbs the original state of in situ stress and results in stress redistribution. This causes rock failures and creates a water-conducting failure zone around a mining panel. If a confined aquifer is situated in the coal seam floor, the mining-induced stresses near the aquifer also generate hydraulic fractures in the rocks near to the aquifer. The mining-induced water-conducting failures and hydraulic fractures by the water pressure of the aquifer are the major reasons to cause water inrushes. The mining-induced water-conducting zone is obtained from theoretical studies and field measurements. The generating condition of the hydraulic fractures by the water pressure is also studied. Methods for predicting water inrushes are given based on the study of water inrush mechanisms. The mechanisms of water inrushes induced by faults are also analyzed from the case studies of water inrushes. It is of crucial importance to detect and map faults, paleo-sinkhole and other geological structures before mining. New mining methods are proposed for mining near confined aquifers to reduce the risks of water inrushes. Copyright Springer Science+Business Media Dordrecht 2015

Suggested Citation

  • Shangxian Yin & Jincai Zhang & Demin Liu, 2015. "A study of mine water inrushes by measurements of in situ stress and rock failures," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 79(3), pages 1961-1979, December.
    • Handle: RePEc:spr:nathaz:v:79:y:2015:i:3:p:1961-1979
    DOI: 10.1007/s11069-015-1941-1
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    References listed on IDEAS

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    1. Dan Ma & Haibo Bai & Yanmeng Wang, 2015. "Mechanical behavior of a coal seam penetrated by a karst collapse pillar: mining-induced groundwater inrush risk," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 75(3), pages 2137-2151, February.
    2. Rui Zhang & Zhenquan Jiang & Haiyang Zhou & Chaowei Yang & Shuaijun Xiao, 2014. "Groundwater outbursts from faults above a confined aquifer in the coal mining," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 71(3), pages 1861-1872, April.
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    Cited by:

    1. Xiuchang Shi & Guangluo Lyu, 2023. "Mechanism of Bed Separation Water Inrush during the Mining of Extra-Thick Coal Seam under Super-Thick Sandstone Aquifer," Sustainability, MDPI, vol. 15(13), pages 1-17, July.
    2. Xiaohong Niu & Guorui Feng & Qin Liu & Yanna Han & Ruipeng Qian, 2022. "Numerical investigation on mechanism and fluid flow behavior of goaf water inrush: a case study of Dongyu coal mine," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 113(3), pages 1783-1802, September.
    3. Haitao Yu & Shuyun Zhu & Huadong Xie & Junhua Hou, 2020. "Numerical simulation of water inrush in fault zone considering seepage paths," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 104(2), pages 1763-1779, November.
    4. Dan Ma & Xiexing Miao & Haibo Bai & Jihui Huang & Hai Pu & Yu Wu & Guimin Zhang & Jiawei Li, 2016. "Effect of mining on shear sidewall groundwater inrush hazard caused by seepage instability of the penetrated karst collapse pillar," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 82(1), pages 73-93, May.
    5. Dan Ma & Zilong Zhou & Jiangyu Wu & Qiang Li & Haibo Bai, 2017. "Grain Size Distribution Effect on the Hydraulic Properties of Disintegrated Coal Mixtures," Energies, MDPI, vol. 10(5), pages 1-17, April.
    6. Chong Li & Zhijun Xu, 2022. "Numerical Modeling and Investigation of Fault-Induced Water Inrush Hazard under Different Mining Advancing Directions," Mathematics, MDPI, vol. 10(9), pages 1-12, May.
    7. Chunyuan Li & Jianping Zuo & Yue Shi & Chunchen Wei & Yuqing Duan & Yong Zhang & Hong Yu, 2021. "Deformation and fracture at floor area and the correlation with main roof breakage in deep longwall mining," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 107(2), pages 1731-1755, June.
    8. Herong Gui & Manli Lin, 2016. "Types of water hazards in China coalmines and regional characteristics," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 84(2), pages 1501-1512, November.
    9. Yanbao Liu & Zhigang Zhang & Wei Xiong & Kai Shen & Quanbin Ba, 2020. "The Influence of the Injected Water on the Underground Coalbed Methane Extraction," Energies, MDPI, vol. 13(5), pages 1-16, March.

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