COMPARATIVE ANALYSIS OF WATER INRUSH FROM THE DEEP COAL FLOOR BY MINING ABOVE THE CONFINED AQUIFER
H. T. Yu1,2, S. Y. Zhu1,2, Y. Chen1,2
1Institute of Mine Water Hazards Prevention and Controlling Technology, Xuzhou, Jiangsu Province, China
2China University of Mining and Technology, Xuzhou, Jiangsu Province 221116 China
Keywords: Глубокозалегающий уголь, структурная сложность, фрактальная размерность, коэффициент прорыва воды, численное разделение, Deep coal, structural complexity, fractal dimension, water inrush coefficient, quantization partition
Abstract
In order to evaluate water inrush risk from the deep coal floor by mining above the confined aquifer in Yongxia mining area of Henan Province, the structural complexity of the study area was partitioned by fractal dimension method. Moreover, the water inrush coefficient was calculated, and quantization partition was also carried out using the distribution law of the water inrush coefficient contour. Comparing the results of the two methods, it is found that the structural complex area and the water inrush danger zone have good coincidence in parts of study area, which increases the estimating reliability of the water inrush risk. At last, water inrush risk. The research results have an important reference value for realizing safe and efficient mining of the second level coal seams.
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