Volume 45 Issue 4
Aug.  2017
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DAI Gelian, XUE Xiaoyuan, XU Ke, NIU Chao, YANG Tao. Risk assessment of water inrush of No.11 coal seam floor in Hancheng mining area on the basis of vulnerability index method[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(4): 112-117,125. DOI: 10.3969/j.issn.1001-1986.2017.04.020
Citation: DAI Gelian, XUE Xiaoyuan, XU Ke, NIU Chao, YANG Tao. Risk assessment of water inrush of No.11 coal seam floor in Hancheng mining area on the basis of vulnerability index method[J]. COAL GEOLOGY & EXPLORATION, 2017, 45(4): 112-117,125. DOI: 10.3969/j.issn.1001-1986.2017.04.020
shu

Risk assessment of water inrush of No.11 coal seam floor in Hancheng mining area on the basis of vulnerability index method

  • 1. College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China;

  • 2. Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Land and Resources, Xi'an 710054, China

Funds: 

National Natural Science Foundation of China(41472234)

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  • Received Date: January 14, 2017
  • Published Date: August 24, 2017
    Graphical Abstract
    • Abstract
  • Based on the comprehensive analysis of the geological and hydrogeological conditions of the study area (Hancheng mining area), this paper puts forward the index system of water inrush from Ordovician limestone aquifer in the coal seam floor by using the relevant factor analysis method. Taking several typical coal mines as examples, the factors influencing water inrush from the No.11 coal seam floor the most threatened by the Ordovician limestone aquifer, are analyzed emphatically. Four evaluation indexes, which are the effective thickness of the confining bed, the scale of fold, the water content of the aquifer, and the scale of the fault, are constructed. The water inrush risk zoning map of the No.11 coal seam floor is obtained based on the vulnerability index method.
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    • References (11)
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